Xcode Error When Building

Whenever I compile something in Xcode, I get 3 errors. One is under "Checking dependencies" and says "Unable to create directory /var/fo开发者_运维问答lders/zZ/string of letters/more directories/more letters." What is wrong with Xcode/my computer? I switched to the Xcode 4 preview and that works fine, but is not stable. Yes, I have tried restarting. This has been going on for weeks. Thanks for the help.

I had a similar issue, which showed up after switching to xcode 4. The error was:

error: unable to create '/build' (Permission denied)

The solution was to change '/build' to 'build' in the project configuration under Intermediate Build File Path.

In your case I would guess the pch file has a path that starts with '/'.