Xcode 4.4 error - Timed out waiting for app to launch

问题

yesterday I installed Xcode 4.4.

I'm working on a project which needs to run on ios 4.1 upwards, supporting iOS device with camera. Until I installed Xcode 4.4 everything went well, and I can test app on iphone 3gs and 4s. After I installed Xcode 4.4 I was unable to test app on iphone 3gs, and everytime I try to do it, xcode shows me that message: - Could not lauch "appname". timed out for app to lauch -

Does someone have any idea how to get rid of that error?

回答1:

I had a similar issue when trying to debug an App with Ad-Hoc provisioning... Check which provisioning you're using, it seems ad-hoc provisioning cannot be used for debugging.

EDIT In fact, it seems only development provisioning profiles are Ok for debugging

回答2:

For me:
Under Edit Scheme
For the Run configuration
On the Info tab
For Build Configuration
I had Release selected

But, it needs to be on Debug to run locally on a device.

回答3:

I had a similar issue. In my case the reason was that I changed the setting for Launch ( xcode -> product -> Edit Scheme) to Wait and forgot about it.

When I changed the setting back to Automatic, the app will launch as usual.

回答4:

I also had same problem. I deleted old provisioning & distribution profiles from the testing devices and installed the modified profiles. The date of these provisioning profiles matter. The error timedout got solved.

回答5:

Check which provisioning you are using, it seems that ad-hoc provisioning cannot be used for debugging. If your problem is not solve with above instruction then also try these:

 Stop the app from running in Xcode;
 Delete the app from the device (or Simulator);
 Select Product > Clean from the Xcode menu;
 Close Xcode;
 Close the Simulator (or restart the device);
 Restart your computer & then check.

回答6:

Remove the app from the device/simulator and try again, should work. Looks to be a bug in xcode.

回答7:

It is issue of Provisioning profile. I was using Distribution Provisioning Profile. Changed back to Development Provisioning profile from Developer portal and used that, Solved the issue.

回答8:

This worked for me on XCode 4.6 iOS 6.1.2

• Open Organizer
• Select your device from the left
• Add to Portal
• Enter you Developer credentials
• Close Organizer and in the project file under your target select "Build Settings" -> "Code Signing Identity" pick the profile "iOS Team Provisioning Profile"
• Clean and run.

回答9:

I had same problem now I resolved it ..

Follow these step to sort out the problem.

Step:1 Go to xcode folder like this

Step2: Reach to folder xcode->DerivedData

Step3: Delete all folder inside of DerivedData

It will work for you Thanks

回答10:

Old question but adding my solution for rare cases like mine. Removing app from device/ clean-build/ provisioning changes did not work for me. I restarted the Xcode and it started working fine.

回答11:

Try to remove you app from simulator and/or reset simulator settings.

Simulator settings could be different from old one.

Generally, resetting everything works well.

回答12:

In my case the cause turned out to be the launch daemon being unable to load the app icons and crashing. Even though it didn't look like a crash - the device and the OS were becoming very slow or totally unresponsive. I figured this by analysing the crash logs. (My icons were too large - about 2,500x2,500 - I simply forgot to reduce their sizes properly before adding them to resources). Hope this helps someone.

回答13:

I tried all solution above with no success. But when I did complete cleanup of my iPhone 4S with iOS 7 this problem never occurred again.

来源：https://stackoverflow.com/questions/11683308/xcode-4-4-error-timed-out-waiting-for-app-to-launch