When I try to publish my (WPF, C#) application, I get these errors:
Cannot publish because a project failed to build.
Could not find file \'obj\\x86\\Debug
This is a problem with Visual Studio that can occur when you have add-ins installed. Instead of using the Publish button in the Publish tab, use Build/Publish from the menu on the top of Visual Studio.
If you use the Publish button, it runs through the add-ins before doing the build (or something like that). If you use Build from the menu instead, it goes straight to msbuild and ignores any add-ins you have installed.
If you have DevExpress installed and are still having problems, check out this article: http://www.devexpress.com/Support/Center/p/Q260132.aspx