title: objc_msgSend appWillTerminate
body: <p>Can anyone please explain the crashlog?
  I am not getting that for which notification this crash is appearing.</p>
  
  <pre><code>&gt; Crashed: com.apple.main-thread EXC_BAD_ACCESS KERN_INVALID_ADDRESS at
  &gt; 0x714e79b2  raw 0 libobjc.A.dylib  objc_msgSend + 5 appWillTerminate:
  &gt; 1 CoreFoundation  
  &gt; __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12 2 CoreFoundation  
  &gt; _CFXNotificationPost + 1784 3 Foundation  
  &gt; -[NSNotificationCenter postNotificationName:object:userInfo:] + 72 4 Foundation   
  &gt; -[NSNotificationCenter postNotificationName:object:] + 30 5 UIKit 
  &gt; -[UIApplication _terminateWithStatus:] + 218 6 UIKit  
  &gt; -[UIApplication _handleApplicationDectivationWithScene:shouldForceExit:transitionContext:completion:]
  &gt; + 2518 7 UIKit    
  &gt; -[UIApplication workspaceShouldExit:] + 140 8 FrontBoardServices  
  &gt; __31-[FBSSerialQueue performAsync:]_block_invoke + 12 9   CoreFoundation  
  &gt; __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12 15   UIKit    UIApplicationMain + 1440 16 Meeting     main.m line 13 main
  </code></pre>