Fixing The File '/MyPag.aspx' Has Not Been Pre-compiled, And Can't Be

How fix pre-compiled error

To solve "The file '/*MyPage*.aspx' has not been pre-compiled, and cannot be requested is very simple. You have to delete from your root installation the file:

 PrecompiledApp.config

and remove the "bin" folder.

After that, reinstall your project.

The cause should be a change of the name of the assembly or the name of the pre-compiled assembly.