title: The contentViewController ((null)) or contentViewController.view is nil
body: <p>I get the following error and stacktrace however the view is not nil (as shown by the logging down right before it)</p>
  
  <p>Stacktrace</p>
  
  <pre><code>2014-02-05 08:29:47.338 MenuTimer[74522:303] An uncaught exception was raised
  2014-02-05 08:29:47.338 MenuTimer[74522:303] The contentViewController ((null)) or contentViewController.view is nil.
  2014-02-05 08:29:47.340 MenuTimer[74522:303] (
      0   CoreFoundation                      0x00007fff8e39341c __exceptionPreprocess + 172
      1   libobjc.A.dylib                     0x00007fff87b1ee75 objc_exception_throw + 43
      2   CoreFoundation                      0x00007fff8e3932cc +[NSException raise:format:] + 204
      3   AppKit                              0x00007fff8157e3da -[NSPopover showRelativeToRect:ofView:preferredEdge:] + 228
      4   MenuTimer                           0x0000000100002a72 -[MenuTimer onSetTime:] + 818
      5   AppKit                              0x00007fff814f83d0 -[NSApplication sendAction:to:from:] + 327
      6   AppKit                              0x00007fff81513348 -[NSMenuItem _corePerformAction] + 394
      7   AppKit                              0x00007fff81513084 -[NSCarbonMenuImpl performActionWithHighlightingForItemAtIndex:] + 117
      8   AppKit                              0x00007fff815624dd -[NSMenu _internalPerformActionForItemAtIndex:] + 35
      9   AppKit                              0x00007fff81562359 -[NSCarbonMenuImpl _carbonCommandProcessEvent:handlerCallRef:] + 104
      10  AppKit                              0x00007fff81509176 NSSLMMenuEventHandler + 716
      11  HIToolbox                           0x00007fff8acff6d4 _ZL23DispatchEventToHandlersP14EventTargetRecP14OpaqueEventRefP14HandlerCallRec + 892
      12  HIToolbox                           0x00007fff8acfec87 _ZL30SendEventToEventTargetInternalP14OpaqueEventRefP20OpaqueEventTargetRefP14HandlerCallRec + 385
      13  HIToolbox                           0x00007fff8ad12d90 SendEventToEventTarget + 40
      14  HIToolbox                           0x00007fff8ad48a30 _ZL18SendHICommandEventjPK9HICommandjjhPKvP20OpaqueEventTargetRefS5_PP14OpaqueEventRef + 420
      15  HIToolbox                           0x00007fff8ad7b618 SendMenuCommandWithContextAndModifiers + 59
      16  HIToolbox                           0x00007fff8ad7b5c4 SendMenuItemSelectedEvent + 178
      17  HIToolbox                           0x00007fff8ad7b4a5 _ZL19FinishMenuSelectionP13SelectionDataP10MenuResultS2_ + 94
      18  HIToolbox                           0x00007fff8ad5956e _ZL19PopUpMenuSelectCoreP8MenuData5PointdS1_tjPK4RecttjS4_S4_PK10__CFStringPP13OpaqueMenuRefPt + 1726
      19  HIToolbox                           0x00007fff8ad586c6 _HandlePopUpMenuSelection7 + 596
      20  AppKit                              0x00007fff81561221 _NSSLMPopUpCarbonMenu3 + 4153
      21  AppKit                              0x00007fff815601d6 _NSPopUpCarbonMenu3 + 39
      22  AppKit                              0x00007fff8155fe96 -[NSCarbonMenuImpl popUpMenu:atLocation:width:forView:withSelectedItem:withFont:withFlags:withOptions:] + 350
      23  AppKit                              0x00007fff81950959 +[NSStatusBarButtonCell popupStatusBarMenu:inRect:ofView:withEvent:] + 699
      24  AppKit                              0x00007fff81951ade -[NSStatusItem popUpStatusItemMenu:] + 173
      25  MenuTimer                           0x0000000100001779 -[StatusBarView mouseDown:] + 633
      26  AppKit                              0x00007fff814ded08 -[NSWindow sendEvent:] + 11296
      27  AppKit                              0x00007fff815da11b -[NSStatusBarWindow sendEvent:] + 247
      28  AppKit                              0x00007fff8147d744 -[NSApplication sendEvent:] + 2021
      29  AppKit                              0x00007fff812cda29 -[NSApplication run] + 646
      30  MenuTimer                           0x0000000100002500 -[MenuTimer init] + 2112
      31  MenuTimer                           0x00000001000031b5 main + 101
      32  libdyld.dylib                       0x00007fff87fcc5fd start + 1
  )
  </code></pre>
  
  <p>However the following code and output indicates differently. Is it because I don't have an explicit controller?</p>
  
  <p>Code</p>
  
  <pre><code>    // create set time window
      NSLog(@"Set Time...");
      NSLog(@"View %@", self.statusTime.view);
      NSLog(@"Frame %@", self.statusTime.view.frame);
      NSPopover *popover = [[NSPopover alloc] init];
      NSLog(@"Showing popover...");
      [popover showRelativeToRect:[self.statusTime.view frame]
                           ofView:self.statusTime.view
                    preferredEdge:NSMinYEdge];
  </code></pre>
  
  <p>Output</p>
  
  <pre><code>2014-02-05 08:29:47.237 MenuTimer[74522:303] Set Time...
  2014-02-05 08:29:47.237 MenuTimer[74522:303] View &lt;StatusBarView: 0x6080001b05a0&gt;
  2014-02-05 08:29:47.238 MenuTimer[74522:303] Frame &lt;StatusBarView: 0x6080001b05a0&gt;
  2014-02-05 08:29:47.238 MenuTimer[74522:303] Showing popover...
  </code></pre>