I downloaded a open source project and was trying to open it in VS 2010. It contained the .pfx file which gives me the above mentioned error while building the project.
I tried signing it using sn -i VS_KEY_GHSTGEDY8755075 but it asks me for the password.
How can I fix this error ?
I experienced this issue in VS 2005 and the solution was as stated here: http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvcs/thread/c33d7f75-6893-4793-a407-3aa3d49c098c/
I am not familiar with VS 2010, but I imagine that this is the same issue and can be solved in similar fashion.
Open the project properties -> signing
Uncheck the following options:
Sign the clickonce manifests
Sign the assembly
Save the project and try building the solution.