The process of upgrading from Project Server 2010 to Project Server 2013, or migrating between environments can be quite complex, requiring a number of steps to be completed in the correct order. In this post, I am going to document some of the common and uncommon errors that you may run into. I also intend to update this post as I uncover more.
Unmounted Project Service Database
Unlike SharePoint Content databases, Project Service databases need to be mounted before you can run a Test against them.