iProgrammer Tip#7: springboard failed to launch application with error 7

Today i had another  weird moment with xCode/iPhone Simulator.

I had couple of projects open for a while and switched to one of those and wanted to test on the Simulator,
but xcode was reporting

Error launching simulated application: SpringBoard failed to launch application with error: 7

The Console log was showing like:

Xcode[27865] Error launching simulated application: Error Domain=DTiPhoneSimulatorErrorDomain Code=1 UserInfo=0x3fc3d80 "SpringBoard failed to launch application with error: 7"

When i switched the Active configuration to release, it was launching the app in simulator as usual. But Debug configuration seemed to have some issue. For next 10 minutes or so i was comparing the differences in Build settings/Target settings etc, nothing seems to be the problem.

Looking more attentively at Console logs shown the following lines were repeating everytime xcode fails to launch..

6/30/09 10:47:41 AM com.apple.launchd[55426] (com.apple.iPhoneSimulator:com.apple.installd[27624]) Exited: Terminated

6/30/09 10:47:41 AM com.apple.launchd[55426] (com.apple.iPhoneSimulator:com.apple.dataaccess.dataaccessd) Unknown key for integer: JetsamPriority

6/30/09 10:47:41 AM com.apple.launchd[55426] (com.apple.iPhoneSimulator:com.apple.apsd) Path monitoring failed on "/var/mobile/Library/Preferences": No such file or directory

When i googled, found there are quite close but the same trouble has been faced by many fellow xcoders.

Multiple Targets in Xcode: "Failed to launch simulated application: unknown error
iPhone: Failed to launch simulated application: unknown error
XCode error: failed to launch simulated application

and finally

iPhone Simulator: SpringBoard failed to launch application with error no 7

What worked for me finally:

Reset Content and Settings didnt work either but Quitting the simulator and re-launching did it.

I almost felt abused as i expected a complex solution to fix

anyway, back to happy xCoding!!