I read this post which apparently solves the issue with WPF app publishing which has SQL Server Compact dependency. I went through all the steps prescribed by the author of this post but it just doesn't work for me. Once I add all the DLLs from SQL Server Compact "private" folder my app crashes on startup. The difference is that I use .NET 4.5 while the example deals with 4.0 I am not sure if that is the core of the problem but it just doesn't work with those settings.
My app is crashing with the following exception :
System.Windows.Markup.XamlParseException
Here is my app.config (including add on from the article ) :
<?xml version="1.0"?>
<configuration>
<connectionStrings>
<add name="TypeAppRelease.Properties.Settings.MyDatabase_1ConnectionString"
connectionString="Data Source=D:\XXXXXX\XXXXX\XXXXXXX\externals\MyDatabase#1.sdf;Password=XXXXXXX;Persist Security Info=True"
providerName="Microsoft.SqlServerCe.Client.4.0" />
</connectionStrings>
<system.data>
<DbProviderFactories>
<remove invariant="System.Data.SqlServerCe.4.0"/>
<add name="Microsoft SQL Server Compact Data Provider 4.0" invariant="System.Data.SqlServerCe.4.0" description=".NET Framework Data Provider for Microsoft SQL Server Compact" type="System.Data.SqlServerCe.SqlCeProviderFactory, System.Data.SqlServerCe, Version=4.0.0.1,
Culture=neutral,
PublicKeyToken=89845dcd8080cc91"/>
</DbProviderFactories>
</system.data>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
</startup>
</configuration>
One more thing. I came to this because doing just ClickOnce publishing produced installation file which didn't work complaining that
The application is missing required files ....
So that lead me to the solution I linked above which also seems not to work.
Update:
I would like to extend on this problem because until not I haven't resolved it.
I decided to put aside ClickOnce deployment and just test Debug/Release builds on 2 machines:1) With SQL Compact Server installed ;2) Has only NET framework installed.
The App works ok on the first machine and fails on the second.That is pretty logical because the first one has Compact SQL installed and running.
Next I removed the server installation from the first machine and ran the app again.It still works , but not for the second PC .The error I am getting is
System.IO.FileLoadException
I can't figure out why I am getting it and why I am not getting the same on the first machine.
Maybe it is 64 /32 bit OS thing? PC1 runs Windows 7 64bit while PC2 x86.
I you use ADO.NET objects (SqlCeCommand, DataSet) instead of Entity Framework (as described in my blog post) you must reference System.Data.SqlServerCe.dll in your project folder (assembly version 4.0.0.1) and NOT the dll in your GAC (assembly version 4.0.0.0). I have updated my blog post with that information.
Related
System Type: 64-bit OS, x64-based processor
Front End: MS Visual Studio 2010
Backend: Firebird database v2.5.0 64-bit Server type: Embedded type (NOTE: Standalone Server v2.5.0 is also present in my system)
Firebird .NET Provider v2.5.0
NB: There are some special reasons why I'm using such old version of VS & Firebird database
Project Platform target: x64
When running my application, I get the error:
An attempt was made to load a program with an incorrect format (Exception from HRESULT:0x8007000B)
The above error is generated when in Add Connection-> TableAdapter Configuration wizard and Server type is Embedded, however there is no error
when the server type is Standalone.
My app.config looks like:
<?xml version="1.0"?>
<configuration>
<connectionStrings>
<add name="dbConFirebirdSQL" connectionString="User=SYSDBA;Password=masterkey;Database=INSMANEMBED.fdb;DataSource=localhost;Port=3050;Dialect=3;Charset=NONE;Role=;Connection lifetime=15;Pooling=true;MinPoolSize=0;MaxPoolSize=50;Packet Size=8192;ServerType=1;"/>
</connectionStrings>
<system.data>
<DbProviderFactories>
<remove invariant="FirebirdSql.Data.FirebirdClient"/>
<add name="FirebirdSql.Data.FirebirdClient" invariant="FirebirdSql.Data.FirebirdClient" description="Firebird Data Provider for .NET" type="FirebirdSql.Data.FirebirdClient.FirebirdClientFactory, FirebirdSql.Data.FirebirdClient, Culture=neutral, PublicKeyToken=3750abcc3150b00c" />
</DbProviderFactories>
</system.data>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>
Some files present in bin\debug are
fbembed.dll
firebird.conf
firebird.msg
ib_util.dll
icudt30.dll
icuin30.dll
icuuc30.dll
msvcp80.dll
msvcr80.dll
Microsoft.VC80.CRT.manifest
intl
I searched the internet and there they are saying that such error may occur if there is difference of bitness of DLL. So using the command
dumpbin /headers C:\path\name.dll, I began to check which DLL is 32-bit/64-bit. And at last I found the offending DLL. It's the FirebirdSql.Data.FirebirdClient which was 32-bit while the rest were 64-bit.
Now my problem is that I again searched the internet all over again for the 64-bit version of FirebirdSql.Data.FirebirdClient but could find none. All are
of 32-bit.
Please advise what should I do now.
I have a .Net 4.5.1 Console application configured as a Windows Service (derives from ServiceBase), using EntityFramework 6.1 installed via the Nuget package.
It works fine running locally (where I run it as a console application).
I deploy it to a Windows Server 2008 machine which has .Net 4.5.2 installed, register it as a Windows Service, and successfully start the service.
The service has a timer that does work every 90 seconds. The first time it does work (after 90 seconds), when it attempts to read from a SQL Server database, it fails with this error message:
System.Configuration.ConfigurationErrorsException: The 'DbProviderFactories' section can only appear once per config file.
I looked into the 2 machine.config files on the machine (in the .Net 2 and 4 folders) and verified that each has only a single DbProviderFactories section. There is no DbProviderFactories in my service app.config. The EventViewer does not have any information. I reinstalled .Net 4.5.2 and restarted the server to no avail.
How can I find out where is it trying to load two DbProviderFactories sections?
I'm adding this next bit of information just in case it is germane.
The second time the service does work (after 180 seconds), when it attempts to read from the same SQL Server database it fails with a different error message:
The ADO.NET provider with invariant name 'System.Data.SqlClient' is either not registered in the machine or application config file, or could not be loaded.
This second error message is similar to this issue:
No Entity Framework provider found for the ADO.NET provider with invariant name 'System.Data.SqlClient'
but unfortunately I've already implemented all the suggestions to fix it.
I installed Entity Framework 6 from the Nuget package in both my data access layer AND my Console App windows service. The NuGet installer inserted the required sections into my app.config:
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
and
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
I deployed what Visual Studio puts in my bin folder when I build. The deployment includes both EntityFramework.dll and EntityFramework.SqlServer.dll
My database connection string is:
<connectionString value="data source=SQLServerName;initial catalog=DatabaseName;integrated security=true;persist security info=True" />
The windows service runs under an identity that has access to the database.
This second error continues until I shut off the service.
Turned out this was the answer: The 'DbProviderFactories' section can only appear once per config file
When I stated "I looked into the 2 machine.config files on the machine (in the .Net 2 and 4 folders) and verified that each has only a single DbProviderFactories section." that was false. There was a duplicate, I simply did not see it the first time I looked.
Okay, this one is really puzzling me, and I apologize if the title of the question doesn't accurately describe what my problem is.
I have a program made in C#, using Entity Framework and SQL Server CE. I developed it on Windows 7, and it works fine. I also have a Windows 8.1 machine that I've tested it on, and it works fine on that too.
However, on a few Windows 8.1 computers, the program crashes as soon as it tries to access the database. I get the following error:
Unhandled Exception: System.InvalidOperationException: No Entity Framework provider found for the ADO.NET provider with invariant name 'System.Data.SqlServerCe.3.5'. Make sure the provider is registered in the 'entityFramework' section of the application config file. See http://go.microsoft.com/fwlink/?LinkId=260882 for more information.
Now, this really confuses me, because I have the latest NuGet package for SQL Server CE installed on my project (4.0). I used the SQL Server CE toolbox to explicitly create a SQL Server CE 4.0 database, I distributed the 4.0 dll's with the application, and I explicitly have version 4.0 listed in my app.config file (invariantName="System.Data.SqlServerCe.4.0").
So, why does the error say System.Data.SqlServerCe.3.5? Why does this error only occur on a couple of Windows 8.1 machines?
(I also searched through my entire solution, and the text "3.5" doesn't even appear anywhere.)
I found similar errors, and I tried (from this question) to include this:
private volatile Type _dependency;
public MyClass()
{
_dependency = typeof(System.Data.Entity.SqlServer.SqlProviderServices);
}
Has no effect, I still get the same exact answer.
Anyways, if anybody has any ideas, I would greatly appreciate any kind of input.
I think problem is both SQL Server CE components installed in your system.
My solution :
<DbProviderFactories>
<remove invariant="System.Data.SqlServerCe.3.5" />
<remove invariant="System.Data.SqlServerCe.4.0" />
<add name="Microsoft SQL Server Compact Data Provider 4.0"
invariant="System.Data.SqlServerCe.4.0"
description=".NET Framework Data Provider for Microsoft SQL Server Compact"
type="System.Data.SqlServerCe.SqlCeProviderFactory, System.Data.SqlServerCe, Version=4.0.0.1, Culture=neutral, PublicKeyToken=89845dcd8080cc91" />
</DbProviderFactories>
I had the same issue and solved it based on this link.
Find this section in your App.config:
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Data.SqlServerCe" publicKeyToken="89845dcd8080cc91" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-4.0.0.1" newVersion="4.0.0.1" />
</dependentAssembly>
</assemblyBinding>
</runtime>
And change oldVersion="0.0.0.0-4.0.0.1" to oldVersion="4.0.0.0-4.0.0.1"
Check your config file and add an Entry for the DbProviderFactories like this:
<system.data>
<DbProviderFactories>
<remove invariant="System.Data.SqlServerCe.4.0" />
<add name="Microsoft SQL Server Compact Data Provider 4.0" invariant="System.Data.SqlServerCe.4.0" description=".NET Framework Data Provider for Microsoft SQL Server Compact" type="System.Data.SqlServerCe.SqlCeProviderFactory, System.Data.SqlServerCe, Version=4.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" />
</DbProviderFactories>
</system.data>
Take a look at your project references, you may be referencing to the wrong dll
I am trying to create a database with SQLite with c# then create a table insert data then close the connection. I have just downloaded System.Data.SQLite.dll lybrary and I am not sure how to use it. There are a lot of examples in the internet but all of them seem to have a database already. Or maybe I am doing something wrong.
It will be nice If I can have a short example to just create a database, table and basic query.
EDIT
I have tried the examples provided by the comments but I don't understand why I do get errors. Maybe I downloaded the wrong library?
The error was because I was using .NET Framework 4.0 . I downgraded to 2.0 and it worked. Sorry for the question. It will be nice to use it with .NET Framework 4.0 though.
Edit:
It actually works with .NET Framework 4.0 I had to add this lines of code to my app.config file:
<startup useLegacyV2RuntimeActivationPolicy="true">
<supportedRuntime version="v4.0.30319" sku=".NETFramework,Version=v4.0,Profile=Client" />
</startup>
also if you plan to use ado.net in your solution I experience a lot of problems when deploying. Everything worked great under development. If you use ado.net and you plan on deploying your app then include also:
<!--Sqlite configuration so that it works with ado.net-->
<system.data>
<DbProviderFactories>
<remove invariant="System.Data.SQLite"/>
<add name="SQLite Data Provider" invariant="System.Data.SQLite" description=".Net Framework Data Provider for SQLite"
type="System.Data.SQLite.SQLiteFactory, System.Data.SQLite" />
</DbProviderFactories>
</system.data>
if you include that last part in your app.config file then you will have to make sure that:
those dll's have to be in your output directory.
if you deploy make sure that you copy those files to the working directory
shouldnt it be {"FailIfMissing", "False"} instead of {"FailIfMissing=False", "False"} ?
Please change the Platform Target for your C# project to Project Settings > Build > Platform Target: Any CPU.
I had a similar error occurred when i tried to run in a x64 machine with SQLite x64 binaries. But worked fine after these settings were changed
Obviously I'd like to not have to install an Oracle client (other than simply a DLL), because that would prohibit my ClickOnce goal. I tried System.Data.OracleClient, but it threw an exception, "System.Data.OracleClient requires Oracle client software version 8.1.7 or greater."
Update:
It seems that System.Data.OracleClient is not the way to go. So I downloaded the xcopy-able version of the Oracle ODP.NET provider. I then ran "install.bat odp.net20 c:\oracle odac" to install only ODP.NET. Then I added a reference in my project to C:\oracle\odp.net\bin\2.x\Oracle.DataAccess.dll. This allowed me to hit the Oracle DB. But when I take all my files to a clean machine (including the oracle DLL), I get an exception: "The type initializer for 'Oracle.DataAccess.Client.OracleConnection' threw an exception." So it seems that it is still depending on some other files. But I don't know what files. And how does it know where the files are? A registry entry? Not looking good for ClickOnce.
Update:
It works as long as I include the files mentioned by mcauthorn: oci.dll, oracle.dataaccess.dll, oraociei11.dll, & oraops11w.dll. Unfortunately, oraociei11.dll is very large -- 114MB.
I would say to go get the ODP.Net Dlls here. You will have to grab the XCopy version, and then add the necessary DLLs to your project and you then should be good to go. The System.Data.OracleClient has been discontinued and is not recommended by Microsoft.
You can use third-party ADO.NET provider. Try this one. It does not require Oracle Client and runs on Mono.
Update, since the original answers are 4 years old.
Just use Oracle's Managed driver. You need only that, nothing else. You can then connect directly with a simple connection string to the database.
<system.data>
<DbProviderFactories>
<remove invariant="Oracle.ManagedDataAccess.Client" />
<!-- If any should be in the machine.config -->
<add name="Oracle Data Provider for .NET" invariant="Oracle.ManagedDataAccess.Client" description="Oracle Data Provider for .NET" type="Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess, Version=4.121.1.0, Culture=neutral" />
</DbProviderFactories>
</system.data>
<connectionStrings>
<clear />
<add name="OracleContext" providerName="Oracle.ManagedDataAccess.Client" connectionString="DATA SOURCE=<IP_ADDRESS>:1521/XE;PASSWORD=<PASSWORD>;USER ID=<USER_ID>;Connection Timeout=600;Validate Connection=true" />
</connectionStrings>
I used ServiceStack's OrmLite as ORM but it should work perfectly fine also directly if you don't want to use an ORM, or with any other. All you need to make sure is that your ORM library is using the managed driver as well and not the old one. I've written a blog post regarding a hack, where I had to change ServiceStack.OrmLite.Oracle to use the new managed driver. This solved all my problems.
Blog post: http://peter.grman.at/how-to-connect-mono-in-linux-to-oracle/
ServiceStack.OrmLite.Oracle.Managed NuGet package: https://www.nuget.org/packages/ServiceStack.OrmLite.Oracle.Managed/
The changes in GitHub: https://github.com/Grman-IT-Solutions/ServiceStack.OrmLite/tree/OracleManagedDataAccess