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XCode4 hangs at appname?

I just upgraded to XCode 4 and for some reason my app won’t run in the simulator or iOS device. It was working perfectly in XCode 3, but all of a sudden now when I press run the program stops at “Attaching to…”. There doesn’t seem to be any other info to help with this problem either. Any ideas?

Fixed it!! Hopefully this helps some people avoid a very frustrating couple hours. I solved this by:




	Clicking on the project name in the left pane (at the very top). This will bring up a new menu to the right, something like the project/ target editors in XCode 3.

	Click on Build Settings up at the top.

	Under Packaging make sure your product name is the same for every build, and equal to whatever it says it's attaching to. Eg if XCode is Hanging at "Attaching to myLCBO" but your product name is "LCBO Finder" then it won't build. That was exactly my problem because I renamed my app half way through development.


Hope this helps!