Exception adding new entities after upgrading to EF 6

[jcavalieri]

I'm getting this error when adding and saving a new entity after upgrading to EF 6.

Method not found: 'Void System.Data.Entity.Infrastructure.DbEntityEntry.set_State(System.Data.EntityState)'.

Any ideas?

p.s. We are using GenericRepository.EntityFramework

[Fettah]

any solution on this ?

[jcavalieri]

Sorry. I don't remember.