EF5 Migrations - Duplicate/Re-defined variable bug when dropping constraints | Issue with usage of SQL GO command

Question

Background:

We have a project that uses ef-migrations containing multiple (read ~60) migrations created over a long period of development. Naturally, some of these

Answer 1

Just delete all the repetitions of this line:

DECLARE @var0 nvarchar(128)

Only the first declaration is sufficient. Your script will work smoothly! :)