I am getting an error while uploading my app on device. It does installs it but not able to upload it.
Also I want to run the instrument tool on device but when I run it
I also confirm, that I had that issue on Xcode 3.2.5 and iOS 4.2 GM Seed and after adding new provisioning profile.
You do not have to use terminal, you can select *.app from Products Group in 'Groups & Files' pane in Xcode. Then right-click on it, and select 'Reveal in finder'. Then manually delete the build catalogue. And restart Xcode.
Worked for me.