The type '<class>' exists in both '<dll location>' and '<dll

[ShiftPoint]

I read this error can come from a few different things including:

1. Duplicate DLL's in the bin directory of your project.

2. "CodeFile" declaration in the .aspx instead of a "CodeBehind" declaration.

3. IIS fubar -

In my case # 3 was the problem. I just opened up IIS and restarted it. Now i can compile