In my .NET 4.7.2 class library project, I added the "Oracle.ManagedDataAccess.EntityFramework" nuget package. When accessing the DbContext
using (var ctx = new BdeDbContext())
I am getting "The Entity Framework provider type 'Oracle.ManagedDataAccess.EntityFramework.EFOracleProviderServices, Oracle.ManagedDataAccess.EntityFramework, Version=6.122.18.3, Culture=neutral, PublicKeyToken=89b483f429c47342' registered in the application config file for the ADO.NET provider with invariant name 'Oracle.ManagedDataAccess.Client' could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application."
After looking at similar posts, I also added the "ODAC for Visual Studio 2017" and "odp.net.x64", but that didn't help. Did anyone have similar problems?
My app.config looks like follows.
<?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" />
<section name="oracle.manageddataaccess.client" type="OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.122.18.3, Culture=neutral, PublicKeyToken=89b483f429c47342" />
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
</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="Oracle.ManagedDataAccess.Client" type="Oracle.ManagedDataAccess.EntityFramework.EFOracleProviderServices, Oracle.ManagedDataAccess.EntityFramework, Version=6.122.18.3, Culture=neutral, PublicKeyToken=89b483f429c47342" />
</providers>
</entityFramework>
<system.data>
<DbProviderFactories>
<remove invariant="Oracle.ManagedDataAccess.Client" />
<add name="ODP.NET, Managed Driver" invariant="Oracle.ManagedDataAccess.Client" description="Oracle Data Provider for .NET, Managed Driver" type="Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess, Version=4.122.18.3, Culture=neutral, PublicKeyToken=89b483f429c47342" />
</DbProviderFactories>
</system.data>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<publisherPolicy apply="no" />
<assemblyIdentity name="Oracle.ManagedDataAccess" publicKeyToken="89b483f429c47342" culture="neutral" />
<bindingRedirect oldVersion="4.122.0.0 - 4.65535.65535.65535" newVersion="4.122.18.3" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="CommonServiceLocator" publicKeyToken="489b6accfaf20ef0" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-2.0.4.0" newVersion="2.0.4.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<oracle.manageddataaccess.client>
<version number="*">
<dataSources>
<dataSource alias="SampleDataSource" descriptor="(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=ORCL.MYCOMPANY.COM))) " />
</dataSources>
</version>
</oracle.manageddataaccess.client>
<connectionStrings>
<add name="BdeDb" providerName="Oracle.ManagedDataAccess.Client" connectionString="User Id=sys;Password=0r@cl3;Data Source=orcl.mycompany.com" />
</connectionStrings>
</configuration>
The relevant project references are:
I have the data access logic in a separate project, installing the Oracle DataAccess nuget package also in my main project solved the problem. Looking closer to the error message helped ... ;)
"and that the assembly is available to the running application"