update-database error - NuGet Package (EntityFramework.SqlMigrations)

Question

i installed EntityFramework.SqlMigrations NuGet Package and i get this error . it worked for me in the past and somehow, now it does not work.

PM> update         


        

Answer 1

For me the problem was the Nuget version.

1. uninstall Nuget Package Manager.
2. restart Visual Studio.
3. installed new version of Nuget Package Manager.
4. then re-start Visual Studio again