I've updated to Xcode 7.3 yesterday and can't really use the simulator since then. I always get this error as soon as I want to start to the app.
When I deinstall the app on the simulator, everything works great. But that can't be a solution. This would take to long. I have also tried different simulators. On the iPhone itself it worked. I changed nothing since the upgrade
May be it's because
CFBundleVersion key/value pair in app's
If your app's Info.plist does not contain a valid CFBundleVersion key/value pair.
doing a "Reset Contents & Settings" will work, would be better to set an appropriate
CFBundleVersion in the
you can check more error info in
~/Library/Logs/CoreSimulator/CoreSimulator.log for error details also, more information about the problem in the simulated device's system log
For more detail check here: http://stackoverflow.com/a/26129829/5575752