The name '###' does not exist in the current content (wave of these on every page)

Question

When any .cs page is opened a slew of "does not exist..." errors show up with an occasional "are you missing a using directive or an assembly reference?"

Although these errors appear, the project can build and run just fine. I can even step through the code. In fact when it is built the errors go away.

Once the run has ended, adding a new page will generate all the same messages for that page and any previous one opened that session.

I have done several searches but these error seems fairly generic and I have not found an answer that works for me just yet.

EDIT: A bit of elaboration on when it first showed up might help - My coworker made some changes by adding a brand new aspx page to our project while I fixed a code issue on a separate page. We used Source Safe go get his changes into my project. Ever since we used Source Safe it seems some configuration was changed with Visual Studio. Both our projects worked fine on separate machine, but now neither runs without these errors.

Answer 1

I have the same issue. I have VS2008 professional. After installing SP1, my copy of VS2008 now generates huge amounts of "does not exist" errors. The code is absolutely perfect, the errors are false reports. If I rebuild, all of the errors disappear. However, simply typing 1 character into any open .cs file will bring back all the errors. They do not go away after waiting.

Other people reporting this bug, say that double clicking an error makes it go away. Not the case for me however.

This is deffo a bug in VS2008SP1. It has to do with the background compilation not working or something. Anybody else have the same issue?

This might fix the issue:

http://blogs.msdn.com/b/kevinpilchbisson/archive/2008/10/30/hotfix-for-vs2008-sp1-available.aspx

Haven't tried it yet.

Anybody have this issue, clearly a BIG problem with VS2008SP1?