Xcode 4 "waiting for process 'Appname' to launch

Question

I installed Xcode 4 and now cannot run one of my iPhone projects.

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Waiting for process 'AppName' to launch.

On the top status bar I see 'Attaching to AppName'. The only weird thing about the project is it has a dependency on ZXingWidget for QR code scans.

Weirder that it works on a co-workers computer, but not mine.

Tried removing my build directory, no dice.

I can run other iPhone projects from source in Xcode 4 with no problem.

Has anyone else seen this?

Answer 1

I ran into the same issue. Go to Product -> Edit Scheme and select the Run scheme on the lefthand side. Go to the info tab, and next to launch there will be two options (neither of them selected): 'Automatically' and 'Wait for XXXX.app to Launch'. Select the Automatically one and it should clear up your issue.

I had actually built and used my projects using xcode 4 for a few days with no issues, and then this popped up randomly. Hope the this helps.

Answer 2

A tip I found at the Apple Developer Forums:

Go into your ProjectName.xcodeproj/ directory and delete anything named with your userid. Re-open the project in xcode and all that will get recreated and it should work. At least it did for me.

Another tip is to manually delete the build directory.

Yet another tip is to navigate to the Organizer (Shift ⇧ Command ⌘ 2 in xcode 4), select Projects, select you application in the left hand side and then the Delete...-button to the right of Derived Data.

And never forget the universally useful tip: restart your computer and try again.

Good luck!