Unable to generate an explicit migration in entity framework

Question

I am adding a new migration but this message shows:

Unable to generate an explicit migration because the following explicit migrations are pending:

Answer 1

This error can also mean that the migrations are not recognized anymore. This happened to me after having changed the value of the ContextKey in Migrations.Configuration. The solution was simply to update the ContextKey in the database table "__MigrationHistory" (or revert the value in the Configuration class I guess). The ContextKey and the Namespace in your application should match.