System.TypeLoadException: Could not load type 'Microsoft.Extensions.DependencyInjection.ServiceCollectionExtensions'

[Pheonixforce]

We upgraded from RC2 to RTM and are now getting
System.TypeLoadException: Could not load type 'Microsoft.Extensions.DependencyInjection.ServiceCollectionExtensions' from assembly 'Microsoft.Extensions.DependencyInjection, Version=1.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. at Microsoft.EntityFrameworkCore.Design.Internal.StartupInvoker.ConfigureServices() at Microsoft.EntityFrameworkCore.Design.DbContextOperations..ctor(ILoggerProvider loggerProvider, Assembly assembly, Assembly startupAssembly, String environment, String startupProjectDir) at Microsoft.EntityFrameworkCore.Design.MigrationsOperations..ctor(ILoggerProvider loggerProvider, Assembly assembly, AssemblyLoader startupAssemblyLoader, Assembly startupAssembly, String environment, String projectDir, String startupProjectDir, String rootNamespace) at Microsoft.EntityFrameworkCore.Tools.Cli.OperationExecutor.<>c__DisplayClass4_0.<.ctor>b__4() at Microsoft.EntityFrameworkCore.Internal.LazyRef1.get_Value()
at Microsoft.EntityFrameworkCore.Tools.Cli.OperationExecutor.AddMigration(String name, String outputDir, String contextType)
at Microsoft.EntityFrameworkCore.Tools.Cli.MigrationsAddCommand.Execute(CommonOptions commonOptions, String name, String outputDir, String context, String environment, Action1 reporter) at Microsoft.EntityFrameworkCore.Tools.Cli.MigrationsAddCommand.<>c__DisplayClass0_0.<Configure>b__0() at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute(String[] args) at Microsoft.EntityFrameworkCore.Tools.Cli.Program.Main(String[] args) Could not load type 'Microsoft.Extensions.DependencyInjection.ServiceCollectionExtensions' from assembly 'Microsoft.Extensions.DependencyInjection, Version=1.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.

we get this error when attempting to create a migration via

'add-migration mydb -context mycontext'

any ideas?

[guardrex]

@Pheonixforce You might want to close this here and re-open over in https://github.com/aspnet/EntityFramework/issues where it will get more EF 👀

Also note that the prob might be due to old packages, so make sure you have the latest packages and tools in the app.

[aspnet-hello]

This issue is being closed because it has not been updated in 3 months.

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