Xcode 4 hangs at “Attaching to (app name)”

Question

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 ru

Answer 1

What worked for me is the following:

In XCode:

• Click on project name
• Click on target name
• Click on "Build Settings"
• Reveal "Product Name" contents (click on triangle)
• Make sure the name of all items matches that of project name
  • Example
    • Product Name myapp
      • Debug myapp
      • Release myapp
• Reveal "Deployment" contents (click on triangle)
• Make sure there is a "IOS Deployment Target" item
  • Example
    • IOS Deployment Target IOS 3.0
      • Debug IOS 3.0
      • Release IOS 3.0

Then clean and run.