SourceTree does not start anymore (Null pointer)

Question

SourceTree does not start anymore.

I redownloaded the newest version from the website, but it suffers the same problem.

The log file says:

ERROR [2017-09-28 09:56:32,317] [1] [SourceTree.App] [.ctor] - finish EnsureSquirrelExecutionStubIsCopied
ERROR [2017-09-28 09:56:32,443] [1] [SourceTree.App] [OnStartup] - Failed to start
System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.
   bei SourceTree.Notifications.NotificationsManager.SetOwner(NotificationDialogWindow notificationWindow)
   bei SourceTree.Notifications.NotificationsManager.ShowNotificationDialog[T](NotificationDialogWindow notificationWindow, Tuple`2 customAction, VistaTaskDialogIcon icon)
   bei SourceTree.Notifications.NotificationsManager.ShowNotificationDialog[T](String title, String message, Tuple`2 customAction, String cancelLabel, String suppressionSetting, Action`1 suppressionChangedAction, Object contentControl, String contentCommandLabel, Action contentAction)
   bei SourceTree.Notifications.NotificationsManager.ShowNotificationDialogWithYesConfirmation(String title, String message, String details)
   bei SourceTree.Configuration.WpfSpellCheckerPreFlightCheck.Run()
   bei SourceTree.AppRoot.RunPreFlightChecks()
   bei SourceTree.AppRoot.OnStartup(StartupEventArgs e)
   bei SourceTree.App.OnStartup(StartupEventArgs e)

Timo Keilbach · Answer

I had the same Issue. After adding the missing setting in the config file, SourceTree started as usual! Thank's

Ana Retamal · Answer

I'm glad to hear that, Marc! Have a nice day :D

Ana

Marc_9csqgb · Answer

Hi Ana,

thanks for the pointer!

This setting was not specified in the configuration file at all, hence the NullReferenceException. Maybe a default value should be used in this case :)

Well, I can confirm that after adding this setting, the NullReferenceException no longer occurs and SourceTree starts successfully again.

Thanks

Marc