Related
When I publish my ABP project I get the following error:
C:\Program Files\dotnet\sdk\6.0.100-rc.1.21458.32\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.ConflictResolution.targets(112,5): error NETSDK1152: Found multiple publish output files with the same relative path:
D:\Github\volo\abp\lepton-theme\src\Volo.Abp.AspNetCore.Mvc.UI.Theme.Lepton\compilerconfig.json,
D:\Github\volo\abp\bookstore\src\Acme.BookStore.Theme\compilerconfig.json,
D:\Github\volo\abp\lepton-theme\src\Volo.Abp.AspNetCore.Mvc.UI.Theme.Lepton\package.json,
D:\Github\volo\abp\bookstore\src\Acme.BookStore.Web\package.json.
D:\Github\volo\abp\bookstore\src\Acme.BookStore.Web\Acme.BookStore.Web.csproj
Issue:
The issue raises after .NET 6 migration.
There's a new feature that blocks multiple files from being copied to the same target directory with the same file name.
See https://learn.microsoft.com/en-us/dotnet/core/compatibility/sdk/6.0/duplicate-files-in-output
Solution #1 (workaround):
You can add the following build property to all your publishable (*.Web) projects' *.csproj files.
This property will bypass this check and works as previously, in .NET5.
<PropertyGroup>
<ErrorOnDuplicatePublishOutputFiles>false</ErrorOnDuplicatePublishOutputFiles>
</PropertyGroup>
Solution #2:
Exclude the problematic files to be copied to the output folder.
In this example we'll exclude these files: compilerconfig.json and package.json.
Add the following lines to your common.props (located in the root directory of your solution):
<Content Remove="compilerconfig.json;package.json"/>
<None Include="compilerconfig.json;package.json">
<ExcludeFromSingleFile>true</ExcludeFromSingleFile>
<CopyToPublishDirectory>Never</CopyToPublishDirectory>
</None>
The above answers led me to my solution. My case is a self-building Entity Framework library project that was now copying over its appsettings.json when building the website that used it.
My solution was to let it copy to output folder (when I am doing migration actions in VS**) but prevent it from publishing using the "Never" value because it is only ever published as a library under a website or web service.
<ItemGroup>
<Content Include="appsettings.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
<ExcludeFromSingleFile>true</ExcludeFromSingleFile>
<CopyToPublishDirectory>Never</CopyToPublishDirectory>
</Content>
</ItemGroup>
** My EF library project builds itself according to the pattern in this data-seeding article.
Thus do I eat my cake and keep it.
If you are getting this in a azure devops pipleline you can add the following task to specify the SDK version for your build
- task: UseDotNet#2
displayName: 'Install .Net SDK version'
inputs:
packageType: sdk
version: x.x.xxx //example (3.1.416)
installationPath: $(Agent.ToolsDirectory)/dotnet
https://learn.microsoft.com/en-us/azure/devops/pipelines/tasks/tool/dotnet-core-tool-installer?view=azure-devops
I ran into this with a Blazor WebAssembly project and an associated integration test project which both had appsettings.json files while I was dotnet publish'ing out via a GitHub action. I found two additional ways that worked for me (along with the accepted answer):
Add <IsPublishable>false</IsPublishable > to the test project
In the dotnet publish commands, specify the .csproj directly via arguments
I ran into this issue with a web application that had a Razor Class Library. The culprit file was LIBMAN.JSON.
Right click on the file and change the properties of the file to:
Build Action: NONE
Copy to Output Directory: DO NOT COPY
Other files that are used for tooling only could possibly be changes the same way.
This is caused by a breaking change in the .NET 6 SDK, and is independent of the .NET version your projects target. For example if you install Visual Studio 2022 it will install the .NET 6 SDK and use that for builds and deploys.
You can force VS to use an older SDK toolchain by generating a global.json file by running dotnet new globaljson in your solution root, then replacing the "version" property value with the desired SDK version (use dotnet --list-sdks to list installed versions).
I guess this means if you have a project dependency A->B where A and B are both executable and have their own appsettings.json, it would be preferable to split project B into B1 as a shell project with the appsettings.json and B2 as a library with all of B's functionality. Then dependencies A->B2 and B1->B2 would avoid the "multiple publish output files" issue.
I have also used compilerconfig.json for compiling scss to css.
And the easiest fix through UI is to:
Open Solution Explorer->compilerconfig.json->right click->properties
and there set:
Build Action: None
Copy to Output Directory: Do not copy
Do this for all compiler.config files (in my case on client project as well as on the server)
The reason behind this is that this compiler config is only used locally in building process but it is not required later on while app is running.
If your projects (All part of the same solution) uses a different version of the same nuget pacage, you will see this error. Now you can either find a workaround as others mentioned in the answers if for some reason you have to keep both versions (which is not a good practice).
Or do the right thing and make sure all project using same version of the package. to do that just open Visual studio's NuGet package manager for solution as shown in the screenshot
A window opens which will have a consolidate tab at the top, click on the consolidate tab. if you have a version conflict, you will be able to see lisr=t of NuGet packages on the left side. If that is the case it means you have conflicts. Click on any package and you will be able to see the list of your solution's projects on the right side just like the following screenshot
in my example (screenshot), I have 2 versions of Microsoft.Net.Sdk.Functions
one with 3.0.13 and 3.0.11.
All you need to do is to select your preferred version and click install and both projects will be updated to the same version.
Push the changes and devops build again and enjoy
I have two projects, API and Hangfire.
The duplication was in publishing hangfire since it uses both API and Hangfire projects and I solved it by removing appsettings files before the publish step.
COPY . .
RUN find ${API} -iname "appsettings*.json" -exec rm {} \;
RUN dotnet publish ${HANGFIRE}/*.csproj --configuration Release --output out --no-restore
I was able to resolve it by setting the Microsoft.NET.ConflictResolution.targets file under the <NETSdkError Condition="'$(_ResolvedFileToPublishContainsDuplicates)' == 'false'" <= this was originally true.
This file is located in "\Program Files\dotnet\sdk\6.0.100\Sdks\Microsoft.NET.Sdk\targets"
I can't run my unit tests.
I have the next error:
Your project does not reference ".NETFramework,Version=v4.6.2"
framework. Add a reference to ".NETFramework,Version=v4.6.2" in the
"TargetFrameworks" property of your project file and then re-run NuGet
restore.
In app.config:
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/>
</startup>
In Project > Properties > Application > TargetFramework (.NET Framework 4.6.2)
How can I fix it?
Please make the next steps
Clean solution
Clean folder "packages"
Delete folder "bin"
Delete folder "obj"
I experienced similar issue, but with v4.7.2. Namely, I kept getting build log message like this:
error : Your project does not reference ".NETFramework,Version=v4.7.2" framework. Add a reference to ".NETFramework,Version=v4.7.2" in the "TargetFrameworks" property of your project file and then re-run NuGet restore.
Despite the fact that it looked similar, none of the above proposed steps worked for me. I kept seeing this message after each build. Nothing seemed to be able to help.
In fact, the problem was related to that, due to migration, I had to put two projects in one folder of code. One of them was targeted at .Net Core, another at .Net Framework, both referenced same .Net Standard libraries. Apparently, they share the same obj folder where Core projects put project.assets.json file. Actually, exactly this file interferres with the Framework project preventing its normal build. Seems even if you performed Migrate from packages.config to PackageReference... which was recommended as one of possible solution.
You can try to fix the issue by putting the following snippet into your Framework project file:
<Project>
...
<PropertyGroup>
<BaseOutputPath>$(MSBuildProjectDirectory)/out/$(MSBuildProjectName)/bin</BaseOutputPath>
<BaseIntermediateOutputPath>$(MSBuildProjectDirectory)/out/$(MSBuildProjectName)/obj</BaseIntermediateOutputPath>
</PropertyGroup>
...
</Project>
It immediately worked for me, it was only later when I attentively read why we need it and why it works. I unexpectedly found it in part 2 of Migrating a Sample WPF App to .NET Core 3 under Making sure the .NET Framework project still builds section. BaseOutputPath and BaseIntermediateOutputPath msbuild variables can be found there, not sure if they are documented well anywhere.
That happened to me when opening a VS2015 project in VS2017. Deleting the project.assets.json from the obj folder did the trick.
Anyway, the Framework from the message was missing in the file, I did not add it there though, went with deleting it.
git clean -xdf
That should do the trick. It worked for us also in Jenkins. (we simply replayed the failed build with a modified script that ran git clean first).
For some reason MSBuild / Visual Studio get confused when switching between branches that target different versions of .NET Framework, so I had to do git cleans regularly while switching between branches.
The file that was causing issue for me was obj/project.assets.json inside project folder. Deleting it and rebuilding the project worked.
I had deleted the obj folder and rerun the build after choosing the target framework required in the property window it worked for me.
I up-voted Larissa but I thought it might be helpful to know how I got into this. I added a .net standard project file to my build (we target lots of platforms) and it produced the debris found in the obj folder. When the android sanity build came around, it threw up on the obj folder. My solution was to clean that folder out as a pre-build step. This is a difficult problem because it was working just fine for years...needle meet haystack.
For my case, delete the .pkgrefgen/ folder under the project folder works, it contains a file project.assets.json that refer to old .net framework
I ran into the same thing with .net 4.71. In my case, I simply migrated from packages.config to "package references" per
Migrate from packages.config to PackageReference
... and it fixed my issue. For me, I was going to do this anyway, so if you're going this way already, I'd just skip the above and migrate to package references.
Renaming the project solved the error for me. The issue happened after I created .NET Core project, then I deleted it and created a .NET Standard one with the same name. Obj folder was not present at all. Deleting bin folder, packages, clean and rebuild solution and getting latest with override did not help.
I have not tried this, but this thread proposed workaround is to include into csproj tag:
<ResolveNuGetPackages>false</ResolveNuGetPackages>
I am using a very old .NET project, and it was working fine until it stopped all of a sudden. Upgrading Visual Studio fixed for me thou.
On VS2019 I had to follow the error message and edit the project.json file that was in the project directory.
was ".NETFramework,Version=v4.0": {} // whatever the copied project was set to
now ".NETFramework,Version=v4.7.2": {} // set to whatever the current build is set to
Problem: In VS2017. Missing reference to .netframework 4.5.2, even though it was referenced as the target framework.
My solution: Verified framework was installed and restarted machine. After a git clean and simply right clicking on the solution in the explore and 'Restore nuget packages' did the trick.
For whatever reason, I got this build error in VS2022.
The same build in VS2019 was successful.
I had the same issue in CI/CD process, when i had upgraded .net framework version from 4.6.1 to 4.7.2 which worked fine locally without any other modification.
However, the jenkins 'slave' node where the build was actually getting generated had some issue with nuget restore and it was not able to pick the latest build for some reason.
Logged into jenkins slave machine/node (basically the machine which jenkins uses to create the build/artifact), go to deployment path and then try deleting projects old builds along with .nugets folder and trigger CI/CD process again worked for me.
This error also occurs if you have removed an old SDK that provided nuget packages, but it is still referenced in your package sources list under Nuget manager/settings. Remove the nuget package source no longer in use to fix this. Otherwise, Visual studio on building will create the project.assets.json file with a reference to the old sdk and if the path is not there, you get the OP's error.
In my case, I had DevExpress 20.2 in my list which I removed to resolve this issue.
In Visual Studio 2012 I have Slow Cheetah version 2.5.10 installed. When building an app that uses Slow Cheetah, the build fails with the following error:
Error 1 The "SlowCheetah.Xdt.TransformXml" task could not be loaded
from the assembly
C:\Users\MyActiveDirectoryAccount\AppData\Local\Microsoft\MSBuild\SlowCheetah\v2.5.10\SlowCheetah.Xdt.dll.
Could not load file or assembly
'file:///C:\Users\MyActiveDirectoryAccount\AppData\Local\Microsoft\MSBuild\SlowCheetah\v2.5.10\SlowCheetah.Xdt.dll'
or one of its dependencies. The system cannot find the file specified.
Confirm that the declaration is correct, that the assembly
and all its dependencies are available, and that the task contains a
public class that implements
Microsoft.Build.Framework.ITask. C:\Users\MyActiveDirectoryAccount\AppData\Local\Microsoft\MSBuild\SlowCheetah\v1\SlowCheetah.Transforms.targets
When navigating to this directory, I can see the Slow Cheetah files, but the SlowCheetah.Xdt.dll file is missing.
C:\Users\MyActiveDirectoryAccount\AppData\Local\Microsoft\MSBuild\SlowCheetah\v2.5.10\
To triage this, I've:
Rebooted
Un-installed and re-installed Slow Cheetah
Clean and rebuild
None of the above fixed the problem. Any guidance would be appreciated. Thanks!
The answer is in one of the Q & A's (by zendu)
Copy the files from
%APPDATA%..\Local\Microsoft\MSBuild\SlowCheetah\v1.
to
%APPDATA%..\Local\Microsoft\MSBuild\SlowCheetah\v2.5.10.
List of files:
Install-Manifest.xml
Microsoft.Web.XmlTransform.dll
SlowCheetah.Tasks.dll
SlowCheetah.Transforms.targets
SlowCheetah.Xdt.dll
Source
Also see this related question
The "SlowCheetah.Xdt.TransformXml" task could not be loaded from the assembly
I had the same problem with Visual Studio 2010. I just install the SlowCheetah nuget package (install-package SlowCheetah) and after that the build succeed. The nuget package set up correctly the slowcheetah task in your solution.
SlowCheetah nuget Package
I have recently created project on visualstudio.com, and enabled continuous build on azure. I created web api project, and created some models and api controllers. Then I deployed it online and it was cool for a good while. Then I updated all dependencies through NuGet. Build went fine on local and also app worked on my local machine. Then I checked in to tfs, and automatic deploying kicked in, with build error.
It says:
C:\a\src\HitchStopApi\packages\Microsoft.Bcl.Build.1.0.6\tools\Microsoft.Bcl.Build.targets (74): The "EnsureBindingRedirects" task could not be loaded from the assembly C:\a\src\HitchStopApi\packages\Microsoft.Bcl.Build.1.0.6\tools\Microsoft.Bcl.Build.Tasks.dll. Could not load file or assembly 'file:///C:\a\src\HitchStopApi\packages\Microsoft.Bcl.Build.1.0.6\tools\Microsoft.Bcl.Build.Tasks.dll' or one of its dependencies. The system cannot find the file specified. Confirm that the <UsingTask> declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask.
On my local machine build I get warning for Tests project
D:\Programming\Projects\HitchStop\HitchStopApi\packages\Microsoft.Bcl.Build.1.0.6\tools\Microsoft.Bcl.Build.targets(220,5): warning : Project must install nuget package Microsoft.Bcl.
On local I use .NET 4.5, MVC4, Entity framework 5.0...
This is somewhat of a bug and is logged in several places. Bcl.Build isn't a project required to build on TFS, so you simply need to tell TFS not to include it if it doesn't exist. To do this, open up your .csproj file (for each project that references Bcl.Build) and change the following:
<Import Project="..\packages\Microsoft.Bcl.Build.1.0.6\tools\Microsoft.Bcl.Build.targets" />
to add a condition:
<Import Project="..\packages\Microsoft.Bcl.Build.1.0.6\tools\Microsoft.Bcl.Build.targets" Condition="Exists('..\packages\Microsoft.Bcl.Build.1.0.6\tools\Microsoft.Bcl.Build.targets')" />
Note: If you update Bcl.Build via Nuget, it will also update your project file and the following will need to be done again. Create a second copy of this and comment it out if you don't want to lose it every update/have a reference.
Related References (same issue, different manifestation):
http://social.msdn.microsoft.com/Forums/en-US/TFService/thread/7bd2e96b-552a-4897-881c-4b3682ff835e
https://connect.microsoft.com/VisualStudio/feedback/details/788981/microsoft-bcl-build-targets-causes-project-loading-to-fail
https://nuget.codeplex.com/workitem/3135
Update: Microsoft wrote an official blog on this. While the above does work in some situations, its not a guarantee. Microsoft and the NuGet team are working together on a solution, but in the meantime have provided 3 (better?) workaround options:
http://blogs.msdn.com/b/dotnet/archive/2013/06/12/nuget-package-restore-issues.aspx
Stop using package restore and check-in all package files
Explicitly run package restore before building the project
Check-in the .targets files
Your problem is described here
Solution:
1. Add dummy project (NugetHelper for example), add package.config with
<package id="Microsoft.Bcl.Build" version="1.0.6" targetFramework="net45" />
Open Menu -> Project -> ProjectDependencies and make NugetHelper to build before other projects in solution
Replace
<Import Project="..\packages\Microsoft.Bcl.Build.1.0.6\tools\Microsoft.Bcl.Build.targets" />
with
<Import Project="..\packages\Microsoft.Bcl.Build.1.0.6\tools\Microsoft.Bcl.Build.targets" Condition="Exists('..\packages\Microsoft.Bcl.Build.1.0.6\tools\Microsoft.Bcl.Build.targets')" />
this will restore Microsoft.Bcl.Build.targets before actually loading it in your main project
Periodically I am getting the following exception:
Unable to load DLL 'SQLite.Interop.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
I am using 1.0.82.0. version, installing it with nuget in VS2010, OS Win7 64.
Once exception starts to appear, it appears constantly - in debug and release and running application within or outside VS.
The only way to stop it is logoff and logon. The exception is not thrown and dll is loaded.
It can work for days, but then it can break again.
Has anyone seen something like this and is there a solution for it?
I know I'm late to the party but I had this issue right after I pulled down latest x86/x64 today (version 1.0.88.0). My local IIS in VS2012 runs 32bit by default and there's no easy way to switch to x64. My production server runs 64bit.
Anyway I installed the NuGet package to a DLL project and I got this error. What I had to do to get it working I had to install it to the main site project, too. Even if it doesn't touch SQLite classes at all.
My guess is that SQLite uses the entry assembly to detect which version of Interop to load.
I had this problem because a dll I was using had Sqlite as a dependency (configured in NuGet with only the Sqlite core package.). The project compiles and copies all the Sqlite dll-s except the 'SQLite.Interop.dll' (both x86 and x64 folder).
The solution was very simple: just add the System.Data.SQLite.Core package as a dependency (with NuGet) to the project you are building/running and the dll-s will be copied.
So, after adding the NuGet the deployment doesn't copy down the Interops. You can add this to your csproj file and it should fix that behavior:
<PropertyGroup>
<ContentSQLiteInteropFiles>true</ContentSQLiteInteropFiles>
<CopySQLiteInteropFiles>false</CopySQLiteInteropFiles>
<CleanSQLiteInteropFiles>false</CleanSQLiteInteropFiles>
<CollectSQLiteInteropFiles>false</CollectSQLiteInteropFiles>
</PropertyGroup>
If you look in the source for NuGet for SQLite you can see what these are doing specifically. This allowed me to get a deploy working with ASP.Net Core.
I had this same problem when using SQLite in a WPF project whose platform target was Any CPU. I fixed it by following the following steps:
Open the project designer in Visual Studio. Details on how to do it can be found here.
Click on the Build tab.
Disable the prefer 32-bit option.
Alternatively, you could just set the platform target to x86 or x64. I think this problem is caused by the System.Data.SQLite library using the platform target to get the location of the 'SQLite.Interop.dll' file.
UPDATE:
In case the project designer cannot be reached, just open the project (*.csproj) file from a text editor and add the value <Prefer32Bit>false</Prefer32Bit> into the <PropertyGroup>...</PropertyGroup> tag.
Example code
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>[Set by Visual Studio]</ProjectGuid>
<OutputType>Exe</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>[Set by Visual Studio]</RootNamespace>
<AssemblyName>[Set by Visual Studio]</AssemblyName>
<TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
<FileAlignment>[Set by Visual Studio]</FileAlignment>
<!--Add the line below to your project file. Leave everything else untouched-->
<Prefer32Bit>false</Prefer32Bit>
</PropertyGroup>
This is how I fixed it in my project.
It was working, and when a colleague submitted his changes, I received the "Unable to load DLL 'SQLite.Interop.dll'" exception.
Diffing the project's .csproj file, this was in the NON-WORKING version:
<ItemGroup>
<Content Include="x64\SQLite.Interop.dll" />
<Content Include="x86\SQLite.Interop.dll" />
</ItemGroup>
And this is what the WORKING version had:
<ItemGroup>
<Content Include="x64\SQLite.Interop.dll">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</Content>
<Content Include="x86\SQLite.Interop.dll">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</Content>
</ItemGroup>
After reverting back, I didn't receive the exception. The DLL files were dumped in the appropriate Debug\x64 (etc) folders.
When you get in this state, try performing a Rebuild-All. If this fixes the problem, you may have the same issue I had.
Some background (my understanding):
SQLite has 1 managed assembly (System.Data.SQLite.dll) and several
platform specific assemblies (SQLite.Interop.dll). When installing
SQLite with Nuget, Nuget will add the platform specific assemblies to your project
(within several folders: \x86, \x64), and configures these
dlls to "Copy Always".
Upon load, the managed assembly will search for platform
specific assemblies inside the \x86 and \x64 folders. You can see
more on that here. The exception is this managed
assembly attempting to find the relevant (SQLite.Interop.dll) inside
these folders (and failing).
My Scenario:
I have 2 projects in my solution; a WPF app, and a class library. The WPF app references the class library, and the class library references SQLite (installed via Nuget).
The issue for me was when I modify only the WPF app, VS attempts to do a partial rebuild (realizing that the dependent dll hasn't changed). Somewhere in this process, VS cleans the content of the \x86 and \x64 folders (blowing away SQLite.Interop.dll). When I do a full Rebuild-All, VS copies the folders and their contents correctly.
My Solution:
To fix this, I ended up adding a Post-Build process using xcopy to force copying the \x86 and \x64 folders from the class library to my WPF project \bin directory.
Alternatively, you could do fancier things with the build configuration / output directories.
I had the same issue running Visual Studio Express 2013. I tried several solutions mentioned here and elsewhere to no avail. I hope this fix helps others.
I fixed it by using the DeploymentItem attribute on my test class that tests the SQLite-based service.
Example:
[TestClass]
[DeploymentItem(#"x86\SQLite.Interop.dll", "x86")] // this is the key
public class LocalStoreServiceTests
{
[TestMethod]
public void SomeTestThatWasFailing_DueToThisVeryIssue()
{
// ... test code here
}
}
This causes the needed SQLite.Interop.dll to get copied to the x86 directory within the appropriate "TestResults" folder.
All is green. All is good.
Updating NuGet from Tools -> Extension and updates and reinstalling SQLite.Core with the command PM> Update-Package -reinstall System.Data.SQLite.Core fixed it for me.
old project file format
i.e. projects beginning with <Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
Add the following to your csproj on your "main"/root project
<PropertyGroup>
<ContentSQLiteInteropFiles>true</ContentSQLiteInteropFiles>
<CopySQLiteInteropFiles>false</CopySQLiteInteropFiles>
<CleanSQLiteInteropFiles>false</CleanSQLiteInteropFiles>
<CollectSQLiteInteropFiles>false</CollectSQLiteInteropFiles>
</PropertyGroup>
new SDK project file format
i.e. projects beginning with <Project Sdk="Microsoft.NET.Sdk.*">
Add PrivateAssets="none" to each ProjectReference/PackageImport in the dependency chain down to the System.Data.Sqlite PackageImport
ex:
<PackageReference Include="System.Data.SQLite.Core" Version="1.0.110" PrivateAssets="none"/>
I had a similar issue in a multiple projects solution. The SQLite.Interop.dll was necessary for one of the plugins distributed with the software using ClickOnce.
As far as debugging in visual studio everything worked fine, but the deployed version was missing the folders x86/ and x64/ containing that DLL.
The solution to have it work after deployment using ClickOnce was to create in the startup project of the solution (also the one being published) these two subfolder, copy into them the DLLs and set them as Content Copy Always.
This way the ClickOnce publishing tool automatically includes these files and folders in the manifest and deploys the software with them
There are really a lot of answers here, but mine is simple and clear with no-GAC-playing-around.
The problem was, the executable File needs a copy of the right SQLite.Interop.dll (x86 or x64) to access our Database.
Mostly architectures have layers and in my case the Data Layer has the required DLL for SQLite Connection.
So i simple put a post build script into my Data Layer Solution and everything worked fine.
TL;DR;
Set all Projects of your solution to x86 or x64 in the build options.
Add following Post-Build-Script to the Project with the SQLite nuget Package:
xcopy "$(TargetDir)x64" "$(SolutionDir)bin\Debug\" /y
Of course you have to change the script for Release Build and x86 builds.
STL;DR;
Put your SQLite.Interop.dll next to the *.exe File.
The default installation of the multi-architecture (x86, x64) version of SQLite from NuGet exhibits the behavior that you described. If you would like to load the correct version for actual architecture that the .NET runtime chose to run your application on your machine, then you can give the DLL loader a hint about where to locate the correct library as follows:
Add a declaration for the kernel32.dll function call to SetDLLDirectory() before your Program.Main():
[System.Runtime.InteropServices.DllImport("kernel32.dll", CharSet = System.Runtime.InteropServices.CharSet.Unicode, SetLastError = true)]
[return: System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.Bool)]
static extern bool SetDllDirectory(string lpPathName);
Then use your own method for determining the correct subdirectory to find the architecture specific version of 'SQLite.Interop.dll'. I use the following code:
[STAThread]
static void Main()
{
int wsize = IntPtr.Size;
string libdir = (wsize == 4)?"x86":"x64";
string appPath = System.IO.Path.GetDirectoryName(Application.ExecutablePath);
SetDllDirectory(System.IO.Path.Combine(appPath, libdir));
even if it is an old post, I'd like to share the solution that I found here:
http://system.data.sqlite.org/index.html/info/54e52d4c6f
If you don't want to read all the issue, the solution is to copy the file "msvcr100.dll" (that can be found in Windows\System32 directory) in the same path as SQLite.Interop.dll.
I would advice to read the issue to understand why, and to include the file in your setup but to install it only if the error occurs, I made it an optional component selectable in the setup options.
HTH,
Formentz
I don't know why this has not been included yet, but I had to do the research and find this out for myself, so hopefully someone will find this answer and be saved the trouble. This was for a WPF app. It worked fine on my Dev box, but did not work on the computer where I was copying it and got the Unable to load DLL 'SQLite.Interop.dll' error. I ported over all of its associated directories and files, directly from my "Debug" folder to this other computer when I got the same error as the OP when I ran it. My "bin" folder that contained my DLLs had been copied to "Debug\bin" and all were included, along with my application files when I did my copying to the other computer using this path, so it was not missing any files.
Things I saw said in other answers that did not apply:
I did not use the NuGet package or need to create x86 or x64 folders that it seems that NuGet package creates. My DLLs (System.Data.SQLite and SQLite.Interop.dll, along with System.Data.SQLite.config) are in the "bin" folder in my project and were copied in manually (create "bin" folder in Solution Explorer in VS, paste DLLs into this folder in Windows Explorer, use Add > Existing Item to bring files into VS folder/project). Then I reference them as Referenced Assemblies in my project using that location ("References" > "Add Reference", and browse to one, rinse, repeat for the rest). This ensures my project knows exactly where they are.
I did not need to reference any SQLite DLL file in my app.config or even touch my MyProject.csproj file.
I did not even need to specify a particular processor! My project's build is for "Any CPU", even though I have only mixed or 64-bit DLLs and will only be running on Windows 7+, which are 64-bit OSes. (no x86-only/32-bit solely DLLs)
I was already specifying them as "Content" and "copy if newer" for these DLLs when I experienced the OP's error.
What I found was this, from https://system.data.sqlite.org/index.html/doc/trunk/www/faq.wiki#q20 :
(11) Why do I get a DllNotFoundException (for "sqlite3.dll" or "SQLite.Interop.dll") when trying to run my application?
Either the named dynamic link library (DLL) cannot be located or it cannot be loaded due to missing dependencies. Make sure the named dynamic link library is located in the application directory or a directory along the system PATH and try again. Also, be sure the necessary Visual C++ runtime redistributable has been installed unless you are using a dynamic link library that was built statically linked to it.
Emphasis mine on that bolded part inside the paragraph. The target computer was fresh and had no programs loaded except .NET 4.0. Once I installed C++, it was able to complete the commands to SQLite. This should have been one of the first FAQs and part of the pre-requisities, but it was buried at #11. My development computer already had it loaded because it came with Visual Studio, so that's why it worked, there.
Download:
Visual C++ Redistributable for Visual Studio 2015:
https://www.microsoft.com/en-us/download/details.aspx?id=48145
Update 3 (cumulative update):
https://www.microsoft.com/en-us/download/details.aspx?id=53587
As the SQLite wiki says, your application deployment must be:
So you need to follow the rules. Find dll that matches your target platform and put it in location, describes in the picture. Dlls can be found in YourSolution/packages/System.Data.SQLite.Core.%version%/.
I had problems with application deployment, so I just added right SQLite.Interop.dll into my project, the added x86 folder to AppplicationFolder in setup project and added file references to dll.
I had the same issue. Please follow these steps:
Make sure you have installed System.Data.SQLite.Core package by
SQLite Development Team from NuGet.
Go to project solution and try to locate build folder inside packages folder
Check your project framework and pick the desired SQLite.Interop.dll and place it in your debug/release folder
Reference
Copy "SQLite.Interop.dll" files for both x86 and x64 in debug folder. these files should copy into "x86" and "x64 folders in debug folder.
You could also get this error if you are trying to run a 32 bit dll, in a 64 bit project.
I got this when I have placed the same file(SQLite.Interop.dll in 32 bit version) in both the x86 and x64 folder.
If you download correct binary for SQLite then copy SQLite.Interop.dll into your Release or Debug folder according to your project build option.
I have started using Costura.Fody to package (.net) assemblies and embed and preload native dlls. This also helps later, with distribution as you can send one file.
Install Costura Fody from Nuget.
In your C# project create a folder called costrua32. In there add any native dlls you which C# to load.
Once you have added them to this folder. Click on the properties window and change build action to "Embedded Resource"
Finally you need to amend the XML file called FodyWeavers.xml as follows. Here I am specifying load the sql dll first. (note you drop the .dll)
Weavers
Costura
PreloadOrder
SQLite.Interop
tbb_debug
tbb
/PreloadOrder>
/Costura
/Weavers
The advantage of this is that you do not have to write any pre or post build events, and the end product is totally encapsulated in to one larger file.
Also added the dll to the test project (through Nuget Manager) and it fixed it.
Could there be contention for the assembly? Check to see whether there's another application with a file lock on the DLL.
If this is the reason, it should be easy to use a tool like Sysinternal's Process Explorer to discover the offending program.
HTH,
Clay
I had this problem because Visual C++ 2010 redistributable no installed in my PC.if you have not already installed Visual c++ 2010 redistributable Download and install this(check x86 or 64 dll).
I got the same problem. However, finally, I can fix it. Currently, I use Visual Studio 2013 Community Edition. I just use Add->Existing Item... and browse to where the SQLite.Data.SQLite files are in (my case is 'C:\Program Files (x86)\System.Data.SQLite\2013\bin'). Please don't forget to change type of what you will include to Assembly Files (*.dll; *.pdb). Choose 'SQLite.Interop.dll' in that folder. From there and then, I can continue without any problems at all. Good luck to you all. ^_^
P.S. I create web form application. I haven't tried in window form application or others yet.
Try to set the platform target to x86 or x64 (and not Any CPU) before you build:
Project->Properties->Build->Platform target in Visual Studio.
Copy SQLite.Interop.dll in project directory.
src\
project\
bin\ <-- Past in bin
x64\
SQLite.Interop.dll <-- Copy this if 64
x86\
SQLite.Interop.dll <-- Copy this if 32
I've struggled with this for a long time, and, occasionally, I found that the test setting is incorrect. See this image:
I just uncheck the test setting, and the issue disappears. Otherwise, the exception will occurs.
Hopefully, this will help someone.
Not sure it's the root cause.
My application is a web application (ASP.NET MVC) and I had to change the application pool to run under LocalSystem instead of ApplicationPoolIdentity. To do this:
Open IIS Manager
Find the Application Pool your site is running under.
Click Advanced Settings from the actions
Change Identity to LocalSystem
I have no idea why this fixes the issue.
My situation was a little unique. I was running an application inside a docker container and kept getting the following error
System.DllNotFoundException : Unable to load shared library 'SQLite.Interop.dll' or one of its dependencies. In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: libSQLite.Interop.dll: cannot open shared object file: No such file or directory
So I set LD_DEBUG=libs to find out what folders System.Data.SQLite.dll was looking in to find SQLite.Interop.dll.
You can find info on setting LD_DEBUG here: http://www.bnikolic.co.uk/blog/linux-ld-debug.html
Once I did that I realized that SQLite.Interop.dll was being found just fine. The DLL that wasn't being found was libSQLite.Interop.dll. I should have read the entire error message.
Hours of Googling later I found this guide on how to compile the missing DLL from the SQLite source code.
Note that the file that was actually missing was libSQLite.Interop.dll.so
Anyway when you compile the source code you get libSQLite.Interop.so which you need to rename to libSQLite.Interop.dll.so and put it in the directory that it's looking in which you can find by setting LD_DEBUG.
For me the directory that System.Data.SQLite.dll was looking in was /usr/lib/x86_64-linux-gnu/
Upgrading to Visual Studio 2019 ver. 16.10 caused the issue for me, where msbuild reported the following for the System.Data.SQLite.Core-package:
CopySQLiteInteropFiles:
Skipping target "CopySQLiteInteropFiles" because it has no outputs.
https://github.com/dotnet/msbuild/issues/6493
Microsoft says the bug has been fixed with ver. 16.10.4. Now just have to wait for AppVeyor to update their Visual Studio Images (Until then one can use Previous Visual Studio 2019).
Now AppVeyor is using broken dotnet-build-engine for both current and previous Visual Studio 2019-image. Now one have to explicit install dotnet sdk ver. 5.0.302:
Invoke-WebRequest -Uri 'https://dot.net/v1/dotnet-install.ps1' -UseBasicParsing -OutFile "$env:temp/dotnet-install.ps1"; & $env:temp\dotnet-install.ps1 -Architecture x64 -Version 5.0.302 -InstallDir "$env:ProgramFiles\dotnet"