VWD Compiler Error

[Mondeo]

Ive added a gridview to my page, gridview1.

Then in code behind ive added a couple of lines

gridview1.datasource = dtFeedback
gridview1.databind

The IDE finds gridview1 no problem and intellisense works fine.

When I try and run it it fails with build errors, none are shown in the normal window however when I go into the output window. It shows

error BC30451: Name GridView1 is not declared.
error BC30451: Name GridView1 is not declared

Ive tried deleting the Gridview and recreating it but its still the same, ive exited VWD and tried again, still the same!

Thanks

 

[Mondeo]

This is happening in other projects now, with any controls. I add them to the page, I can see them fine in the code behind and intellisense works perfectly. But as soon as I build the project I get the textbox1 is not declared or label1 is not declared or whatever?

Has anyone come accross this, my VWD is messed up somehow!