I need to start a Windows Forms project using C# and Entity Framework 6 (Database First) since I have the MySQL database ready.
I have searched a lot and have seen multiple posts here on Stackoverflow and other, (Like this, this and this) but nothing solved my problem, and here is my problem :
I added the EntityFramework plugin (Ver 6.2.0) with the MySql.Data (Ver 8.0.15) and MySql.Data.Entity (Ver 7.0.7-ms61) plugins in order, i also installed MySql for Visual Studio (Ver 1.2.8) and MySql Connector Net (Ver 8.0.15) and when I select my database and check that the connection is successfully established... I get this error message :
"Your project references the latest version of Entity Framework; however, an Entity Framework database provider compatible with this version could not be found for your data connection. Exit this wizard, install a compatible provider, and rebuild your project before performing this action".
I tried all different versions of every plugin i am adding but no luck, If i downgrade the EF version form 6 to 5... I get this message :
"Your project references an older version on Entity Framework, To use the latest version, exit this wizard and upgrade before preforming this action."
Even If i continue with this action and clicked Next, nothing will show up or happen.
My App.config file after I have added all the plugins looks like this :
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
</startup>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value=" v13.0" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=7.0.7.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"></provider></providers>
</entityFramework>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="MySql.Data" publicKeyToken="c5687fc88969c44d" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-8.0.15.0" newVersion="8.0.15.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
</configuration>
And I tried replacing the <entityFramework> tag with this :
<entityFramework>
<defaultConnectionFactory type="MySql.Data.Entity.MySqlConnectionFactory, MySql.Data.Entity.EF6" />
<providers>
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6" />
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
But nothing is working, I am also rebuilding after every new thing that I try, is there someone able to help me please...
Related
As mentioned, I have to configure two database which are MSSQL and MYSQL. For MSSQL case, it works but now I have to add new database (MySQL) but face this question below
The type 'MySql.Data.MySqlClient.MySqlConfiguration' does not inherit from 'System.Data.Entity.DbConfiguration'.
Entity Framework code-based configuration classes must inherit from 'System.Data.Entity.DbConfiguration'.
For my app.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-4.0.3.0" newVersion="4.0.3.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="MySql.Data" publicKeyToken="c5687fc88969c44d" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-8.0.26.0" newVersion="8.0.26.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<entityFramework>
<providers>
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6" />
</providers>
</entityFramework>
<system.data>
<DbProviderFactories>
<remove invariant="MySql.Data.MySqlClient"></remove>
<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=8.0.26.0" />
</DbProviderFactories>
</system.data>
</configuration>
Based on this XML:
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6" />
It appears that you may have installed the MySql.Data.Entity.EF6 NuGet package. That package is no longer supported and is not compatible with MySql.Data 8.0.26.
Uninstall it, and install MySql.Data.EntityFramework instead.
(Or if you installed MySql.Data.Entity, then note that it is also not compatible, as per my answer here. Again, uninstall and replace with MySql.Data.EntityFramework.)
I get this error:
System.InvalidOperationException: 'The Entity Framework provider type 'MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.EntityFramework, Version=8.0.18.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' registered in the application config file for the ADO.NET provider with invariant name 'MySql.Data.MySqlClient' could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application.
This is my app.config file. I cant figure out why i get this error. I've been stuck for days with other posts not giving any help.
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="MySql.Data" publicKeyToken="c5687fc88969c44d" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-8.0.18.0" newVersion="8.0.18.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.ComponentModel.Annotations" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-4.2.1.0" newVersion="4.2.1.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<entityFramework codeConfigurationType="MySql.Data.Entity.MySqlEFConfiguration, MySql.Data.Entity.EntityFramework">
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.EntityFramework, Version=8.0.18.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
</providers>
</entityFramework>
<connectionStrings>
<add name="StudentForYouEntities" connectionString="metadata=res://*/StudentForYouDataBase.csdl|res://*/StudentForYouDataBase.ssdl|res://*/StudentForYouDataBase.msl;provider=MySql.Data.MySqlClient;provider connection string="server=remotemysql.com;user id=dx01fvQECG;password=password;database=myDataBase;persistsecurityinfo=True"" providerName="System.Data.EntityClient" />
</connectionStrings>
</configuration>
EDIT: i found out that it is somehow related to app.config in another project(webapp) when you try to display provider 'System.Data.SqlClient' it throws this exception
Looks like your app can't load MySql.Data.EntityFramework Version=8.0.18.0, have you tried installing it via NuGet?
My program is working fine when i do it on my PC, but when anyone else try it open on their PC, it will open the first page but when they click on "login" and program probably need to start working with database they get this error
I reinstal connectors, do a PM>Install-Package EntityFramework and trying to check app.config but for me it's look fine. Also i have EntityFramework.SqlServer.dll - copy Local - true which should be right.
This is my app.config
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
</startup>
<connectionStrings>
<add name="Database" connectionString="metadata=res://*/DatabaseModel.csdl|res://*/DatabaseModel.ssdl|res://*/DatabaseModel.msl;provider=MySql.Data.MySqlClient;provider connection string="server=XXX;user id=XXX;password=XXX;persistsecurityinfo=True;database=XXX;allowuservariables=True"" providerName="System.Data.EntityClient" /></connectionStrings>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDatabaseModelConnectionFactory, EntityFramework">
<parameters>
<parameter value="v13.0" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.EntityFramework, Version=8.0.17.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"></provider>
</providers>
</entityFramework>
<system.data>
</system.data>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="5.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="MySql.Data" publicKeyToken="c5687fc88969c44d" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-8.0.17.0" newVersion="8.0.17.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
</configuration>
They might didn't have any MySql connector installed on their machine.
Fixed it by installing nuget: MySql.ConnectorNET.Entity
I have a Visual Studio 2017 project that has Entity Framework 6.2
When trying to create the edmx file I get the error
Your project references the latest version of Entity Framework;
however, an Entity Framework database provider compatible with this
version could not be found for you data connection
I have had this many times but it has always been fixed by using the dlls from the connector installation folder and making some changes to the app.config
However I can not get it to work this way now. I have no idea what to try next... I am using MYSQL 8.0.12
This is my app.config
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<entityFramework>
<defaultConnectionFactory type="MySql.Data.Entity.MySqlConnectionFactory, MySql.Data.Entity.EF6" />
<providers>
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6" />
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="MySql.Data" publicKeyToken="c5687fc88969c44d" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-8.0.12.0" newVersion="8.0.12.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
</configuration>
Not sure if this is still solved are not. However, the below solution might be helpful for someone who is struggling.
It doesn't matter if you have installed any version of connector as it is not being automatically referenced in VS 2017. Only thing that matters is "MySQL for Visual Studio".
Install "MySQL for visual studio" (preferably any latest version 1.2.8 or 2.0.5)
In case you face any issue while trying to install 2.0.5 please follow this link : https://forums.mysql.com/read.php?174,664930,664971
Inside your project, Add Nuget References to "MySQL.Data.EntityFrameWork"
(V 8.0.13 or higher)
It will by default create the below App.Config file
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.EntityFramework, Version=8.0.13.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
</provider></providers>
</entityFramework>
</configuration>
And there you go.. It should work fine. I have spent more than 2 days, searching the entire google (almost) to figure that all the references/directions/suggestions were all pointing out "MySql.Data.Entity.EF6".. While all the while it is "MySql.Data.EntityFramework" that works fine with VS 2017
I am trying to privately deploy SQL CE WPF with Entity Framework 6 using Code First.
On Development machine database generates fine in AppData folder and all works fine however on Testing PC I get an exception (no db):
"The ADO.NET provide with invariant name 'System.Data.SQlServerCe.40' is either not registered in the machine or application config file'
I've tried to implement all available literature regarding this issue but still has a problem. I've checked the Bin folder with Deployed Folder and it is the same, all libraries (x86 and amd64) are present and Project Platform target is x86.
No Entity Framework provider found for the ADO.NET provider with invariant name 'System.Data.SqlServerCe.4.0'
http://erikej.blogspot.dk/2013/11/entity-framework-6-sql-server-compact-4_25.html
Entity Framewok Code First "ADO.NET provider not found" with local SQL Server CE DLL's
Bellow is my App.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
</configSections>
<entityFramework>
<contexts>
<context type="MyProject.DAL.GreatContext, MyProject">
<databaseInitializer type="MyProject.Module.Database.Dal.GreatDbInitializer, MyProject" />
</context>
</contexts>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="System.Data.SqlServerCe.4.0" type="System.Data.Entity.SqlServerCompact.SqlCeProviderServices, EntityFramework.SqlServerCompact" />
</providers>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlCeConnectionFactory, EntityFramework">
<parameters>
<parameter value="System.Data.SqlServerCe.4.0" />
</parameters>
</defaultConnectionFactory>
</entityFramework>
<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>
</configuration>
I also have added the bellow code but still issue remains :
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.0.0.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
Any thoughts?
Assuming you use version 4,0,0,1 of the ado.net provider, you need to use this assembly redirect:
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Data.SqlServerCe" publicKeyToken="89845dcd8080cc91" culture="neutral"/>
<bindingRedirect oldVersion="4.0.0.0-4.0.0.1" newVersion="4.0.0.1"/>
</dependentAssembly>
</assemblyBinding>
Redirecting Entityframework.dll will not work.
And the proper solution is to use my EntityFramework.SqlServerCompact.PrivateDeployment NuGet package