Error Processing a Cube: Key cannot be null. Parameter name: key

Wednesday, July 13, 2011

I recently opened a new project in SSAS 2008 R2. After finishing developing the cube, I deployed and processed it on the server. I got a really weird error message that meant, unfortunately enough, nothing to me: "Key cannot be null. Parameter name: key" So what's a girl to do? Well actually, I remember that every so often when I was developing a cube, I would have a problem with the data connection. The default I had defined for me when I opened a new connection was .Net Provider\SqlClient Data Provider. And somehow the default definition would always create an error...