I've currently used the System.Data.SQLite DLL in a .NET 4.0 x86 WinForms app. This is causing an issue on one of my client's PCs although I cannot reproduce this bug on my system. Both systems are 32bit Windows 7. How do I solve this? Things I've tried:
Installing .NET 4.0 (the app is .NET 4)
Installing all possible VC++ Runtime versions from 2005 to 2012
Installing this particular VC++ Runtime that SQLite needs (fixed a similar issue on my PC)
Adding the useLegacyRuntime attribute in the app.config XML
The error looks wierd because my app is obfuscated. The app works on my 32-bit PC and on my 64-bit development PC. It fails on a client machine. What can I do to solve this error?
In your project, solution explorer expands the Reference section and right click System.Data.SQLite then open properties, in the properties window, make sure copy local is set true . After that rebuild your project and run your client machine again
Turns out my SQLite DLL was outdated. I downloaded the latest from here and rebuilt my app with it. It worked on my PC as well as the client's. I had to install VC++ Runtime 2005 x32 on the Client Machine as well.
Related
I have developed a desktop application in c# & SQL server 2012 using Visual Studio 2013. I have included the reference for Microsoft.VisualStudio.DebuggerVisualizers and set copy local : true.
The application runs perfectly on client systems with windows 8, 10.
But its showing this error while installing on a windows 7 system.
- OS Windows 7 Ultimate
- already installed .NET Framework 4.5
- installed Report Viewer.exe 2012
- installed report viewer.msi 2010
- installed sqlclr types
- the system doesnt have any microsoft c++ redistributable , i am not sure whether it has any impact.
I checked in the assembly folder, but couldnt find the Microsoft.VisualStudio.DebuggerVisualizers.dll
Am I missing any prerequisites here? How to solve this issue so that i can install the application
Error Message
It needs the Microsoft.VisualStudio.DebuggerVisualizers.dll in the global assembly cache. The GAC is the area where libs are placed which can be accessed from all of the system.
It's kinda a ugly fix but you could place this lib in the same or subdirectory of the same directory where the application is.
Is it possibly that you haven't installed VS on that Win7 machine but on the others?
Unintentionally the Microsoft.VisualStudio.DebuggerVisualizers.dll had been included in the project reference. And in the client system the specified dll could not be found even after trying to install it. Hence I removed it from reference and then it worked perfectly fine without any issues. I guess instead of report visualizer i have included debuggervisualizer. It was a manual error.
Thank you for your support
For my development environment I'm using Windows 7 Ultimate x64, with VS2008, V2010 and VS2013, and my application is written in C#.
The remote test server has Windows Web Server 2008 R2 x64 and IIS 7.
Here is my specific issue:
I have a native C++ library that I want to use in my C# applications, so I wrote a C++ CLI/CLR wrapper around it, and compiled it all into the same DLL. I've tried both compiling the C++ source into the DLL, and also statically linking the native library into the DLL, and both give me the same result as described below.
If I build this DLL using x64 and .NET 4.5.1 with VS2013, then this DLL works fine with any C# Winforms application in and out of the development environment. It also works when referenced in an ASP.NET application within my development environment (using x64 IIS Express to test). It does NOT work when the web application is deployed (as an x64 build) to the Win2K8 IIS7 server, displaying an BadImageFormatException. I do not build for "AnyCPU" because of the CLI wrapper DLL, which needs to be built for a specific platform.
I have also tried the .NET4.5.1 x86 version of the CLI DLL (using VS2013), and it also works fine with all Winforms applications, and works with ASP.NET on my development machine (using x86 IIS Express), but it does not work on the Win2K8 IIS7 server (x86 build). Same BadImageFormatException error when trying to load this DLL.
On the server it uses an integrated application pool because of the ASP.NET Identity code (won't let me use Classic mode). Also, the "32-bit applications" setting has been toggled to both True/False, and neither has helped solve this issue.
If I build the C++ CLI DLL for .NET 2 or .NET 3.5 and the x86 platform with VS2008, or even VS2013, but selecting VS2008 (V90) as the platform toolset, then it works perfectly fine on the Win2K8 IIS7 server, with no BadImageFormatException error. The ASP.NET integrated app pool "32-bit applications" setting is "True" in order for this to work.
If I build the C++ CLI DLL as .NET 2 or 3.5, x86 platform, but with anything newer than the VS2008 toolset, it fails to load on the IIS server, with BadImageFormatException, even though it works fine on the development machine ASP.NET and in any Winforms application.
Using VS2008, .NET 2 or 3.5, and platform x64, the DLL works in any Winforms app, works with ASP.NET/IIS Express x64 on the development machine, but does NOT work on the Win2K8 IIS7 server, displaying BadImageFormatException. The application pool "32-bit applications" was set to both True and False for testing.
So, in summary, the only option that works on IIS7 is building with the x86 platform selected, using the VS2008 (V90) toolset.
Has anyone experienced anything like this or have an idea what may be causing this issue. I can't see anything drastically different between the working DLL and the others using JetBrains dotNetPeek 1.1, but that's only really a look at the surface... all the code exists in there. Could there be an option in the V100 or higher toolset that is embedding something in the DLL (or leaving something out of it) that is causing it to not be loaded on IIS7?
Any help or suggestions would be appreciated.
Ok, so after struggling with this issue for almost a month now, and resorting to asking on here last night, I came across these links:
Identifying problematic dependencies in C++/CLI project
and
http://www.codeproject.com/Articles/442784/Best-gotchas-of-Cplusplus-CLI
While they didn't actually specify the solution, there was something in there that I hadn't tried yet, which was to check if the Windows 2008 R2 server required the VS2013 C++ redistributable packages.
I installed both the x86 and the x64 redistributable packages, and suddenly my x64 ASP.NET app that uses the managed C++ wrapper for the native C++ library came to life. Everything is working as intended now. I can compile the wrapper DLL with the VS2013 toolset, x64 platform, using v4.5.1 of .NET, and it works perfectly fine. I no longer require the VS2008 toolset.
So much for BadImageFormatException throwing me off completely. I wish the error displayed on the Win 2K8 IIS7 server was actually more specific, but then again maybe that is just me asking for too much.
I hope this helps someone else.
I compiled my executable that used the Access Database Engine libraries on Windows XP 32bit.
Running that on the Win7 x64 OS gave me an error that the OLEDB components were not registered.
I tried to install the AccessDatabaseEngine x64 and it fixed the problem.
However on another machine with Win7 x64 and office 2007 32bit installed, it wouldn't let me install the AccessDatabaseEngine x64 and so I was left to compile the project on that target machine (in VS2010 c#) with the Env as x64 and target CPU as x86. This fixed the problem.
My question is, why does this work? What's the reasoning behind this?
Thanks.
The answer your question what you are stating means that there for one is a different OS but should not matter.. the real issue here is that there are 2 different versions of Microsoft Installed.. you would have to either
GAC the version or Reference the version of the Target Machine
Set Copy Local of the .DLL in the working version to the Target version.. sort of like where your DLL's would reside in the Debug/Bin or Debug/Release folder where the bin folder resides..
I am working on Windows 7 64 bit and copied my working dll's over to a Windows 2003 server machine and my projects still work..
my other work around was to reference the Microsoft.Interop.Access .dll's from the Target machine into my Solution, recompile and Bam....!
SqlServerCe doesn't seem be supported in .net 4.0. But since I needed an embedded database in my application, I gathered all the necessary 3.5 dlls and included them so that my wpf application could use SqlServerCe as its embedded database.
The application works on my development machine, but now that I've created an installer, and am installing the application on other machines, I keep getting this exception on hose machines:
Unable to load DLL 'sqlceme35.dll': This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem. (Exception from HRESULT: 0x800736B1)
That dll is definitely included in directory where the application is installed. I've even tried copying all related SqlServerCE dlls to the System 32 folder. Nothing I've tried so far has resolved the problem.
Any suggestions?
I just recompiled an app I have that uses SQL Server CE 3.5.1 in .NET 4.0 and it works just fine. Here are a few things to check:
Are you including all of the SQL
Server CE DLLs in your installer?
There are 7, not just 1. The others are native DLLs which are the actual core of SQL Server CE.
SQL
Server CE has x86 and x64 version
DLLs. Are you using the correct
version for the OS you are
installing on?
I resolved my problem by installing:
Microsoft SQL Server Compact 3.5 Service Pack 2 Beta 2 for Windows Desktop:
I solved the problem by installing the Microsoft Visual C++ 2008 Redistributable Package (x86)
In my case the Microsoft.VC90.CRT.manifest from \bin\amd64\Microsoft.VC90.CRT respectively \bin\x86\Microsoft.VC90.CRT was missing. When deploying your solution, it isn't part of the release by default but on some servers it seems to be necessary.
I try to run Console Application that connects to Microsoft Access Database on the Windows 2008 server x64 and have this error:
Class not registered
at ADOX.CatalogClass.Create(String ConnectString)
All works fine on the Windows XP x86.
Thanks
ADOX COM component is only available for x86 systems. This means that it cannot be used on code that is generated for the x64 platform. A possible solution is to explicitly set the target processor in the Visual Studio project to x86.
For fixing this bug, application should be compiled for x86 CPU. And after that it will run on the x64 platform as a x86 app.
I find the solution for this bug after google it.
The problem is due to JET. JET doesn't have support for 64-bit. To fix this we changed App Pool configuration from 64-bit to 32-bit. That was all to fix this. Apparently, exception information is misleading.
Application Pools->Select Your Application Pool-> Advanced Setting->Enable 32-Bit Applications ->True
After done this, it is working correctly.