Hi,
I've been trying for a few hours to find a solution for this issue but no luck so far.
I had SourceTree 2.7.3 installed on macOS HighSierra 10.13.5 and the app keeps crashing on start without any error.
I updated it to 2.7.4 but the result is the same.
And I don't like the idea of uninstalling it since I have some uncommitted changes left.
Here is an error log: https://pastebin.com/hWF82GgQ
Any ideas?
LE: I managed to find out what is causing this (apparently).
The problem seems to be with the browser.plist located in ~/Library/Application Support/SourceTree.
Deleting the file allows SourceTree to start without any local bookmark but if I try to add a local repository, the app crashes.