Visual Studio hang-up

[Robert Rotstein]

My project was working fine. Then, all of a sudden, VStudio froze up, an
error window appeared asking me whether I wanted to send an error report.
After I sent the report, Visual Studio re-started. But now, the project
won't compile. When I try to open the main form in designer mode, I get an
error which says:

"An exception occurred while trying to create an instance of
System.Windows.Forms.Form. The exception was "Unable to load DLL (AGL).".

It tells me to "fix the error, and then try loading the document again".
But I have no idea what to do. Anybody know?

 

[Ken Cox [Microsoft MVP]]

Are you able to create a new, empty solution and add your existing project
to it?