We are using TFS and have different branches for our Dev.
in the branch A we made a migration to change a column size
in the branch B we mad
As an addition to Anders Abel's answer and for those of you who are having the issue when trying to regenerate the last migrations metadata causing EF to create a separate migration with a 1 appended to it.
You must include the full date/time stamp.
E.g.
If the filename of your previous migration is 201701011322_MakeChangesToPotatoTable
Then you must include the fullname properly in the "Add-Migration" command.
I.E.
Add-Migration 201701011322_MakeChangesToPotatoTable