I get this error message when I try to deploy my project:
Error occurred in deployment step 'Add solution': The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT:0x80131040)
Earlier I had added some code to a visual webpart.
What I have done: - restarted VS 2010 - restarted pc - clean - retract - rebuild - after done all this I have taken a deploy.