SourceTree crashing on startup

[pcuser42]

All of a sudden SourceTree is crashing on startup. It worked fine a couple of days ago but now in the logs I'm getting the message "System.Windows.Markup.XamlParseException: Provide value on 'System.Windows.StaticResourceExtension' threw an exception. ---> System.MissingMethodException: Method not found: 'System.Uri System.Xaml.XamlObjectWriterSettings.get_SourceBamlUri()'."

Reinstalling, reverting to an older version and repairing .NET did not help. I'm using Windows 7.

Anyone else come across this?

[B]

Seems like in the last few days Source Tree is having problems with its dlls in this thread https://answers.atlassian.com/questions/32972886 an error is described which is related to missing functions. Perhaps the same solution will work for you as well. Look for the answer from Todd Dowty

[pcuser42]

Thanks, but that didn't work unfortunately.