A confusing connection problem using Entity framework and Migrations

Recently I have stumbled upon a strange exception that raised in my application. It has led to an exception with a confusing message “Could not determine storage version; a valid storage connection or a version hint is required.” Thankfully I have solved this issue finally. I have check that it also occurs on the latest version of Entity Framework which currently is 6.1.2. To r…

By Mirek on (tags: EF, migrations, categories: code)