Storyboard broken after updating Xcode to version 10.3 (10G8) & app no longer is running
XcodeStoryboardXcode Problem Overview
I just updated the Xcode to version 10.3 (10G8).
Now my project is not run with this error:
/* com.apple.actool.errors */
: error: Failed to find a suitable device for the type IBSimDeviceTypeiPad2x (com.apple.dt.Xcode.IBSimDeviceType.iPad-2x) with runtime iOS 12.4 (12.4 - 16G73) - com.apple.CoreSimulator.SimRuntime.iOS-12-4
Failure Reason: Failed to create new simulator device that matches IBSimDeviceTypeiPad2x (com.apple.dt.Xcode.IBSimDeviceType.iPad-2x) for runtime iOS 12.4 (12.4 - 16G73) - com.apple.CoreSimulator.SimRuntime.iOS-12-4 (Invalid runtime: com.apple.CoreSimulator.SimRuntime.iOS-12-4)
Underlying Errors:
Description: Invalid runtime: com.apple.CoreSimulator.SimRuntime.iOS-12-4
/* com.apple.actool.compilation-results */
/Users/xxx/Library/Developer/Xcode/DerivedData/xxxxx-dxlvvymxzdfqjubnuntqlxggtyja/Build/Intermediates.noindex/xxxxx.build/Debug-iphonesimulator/xxxxx.build/assetcatalog_generated_info.plist
Xcode Solutions
Solution 1 - Xcode
Running sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService
from terminal solved my problem.
Solution 2 - Xcode
I restarted my mac, the problem solved.
Solution 3 - Xcode
I had the same issue, all i did is
clear constraint, for my case the source was from UITableView, and make sure constraints are attached to safeare not superview. see image
from toolbar on the top go to Editor > Canvas > Layout Rectangle Very important you have to repeat this step 3 times
Quit XCode and reopen it again , all should be fixed
I've noticed this happen when i switch view for different devices 8, 11, 4s
Good luck