Everything coming up not decalred/not defined

[beaniebear]

Something seems to have happened to my asp.net project. There are loads of errors which weren't there before saying control types are not defined etc. Also error like ispostback not declared, response not declared etc.

What have I done?

The project compiles and runs ok?

 

[jbenson001]

Sounds like the project file got corrupt.
I would try to create a new project and then copy over your files to the new project.