SourceTree error in python script, tries to load mercurial libs for a git repo (?)

[petruza]

Hi, I have a git repository on github mapped to the company's domain, like this:

https://git.domain.com/user/repo/

I use SourceTree 2.0.4 for MacOS, I've been using this repo in it without any problem.
I changed now to another computer, Mac also, and tried to set up the same repo on SourceTree.

When trying to clone it I get the following error: This is not a valid source path / URL

I click on the error description and displays a Python stack trace error which starts with:

ImportError: dlopen(.../SourceTree.app/Contents/Resources/mercurial_local/mercurial/osutil.so, 2):
Library not loaded: /System/Library/Frameworks/CoreGraphics.framework/Versions/A/CoreGraphics

Referenced from: .../SourceTree.app/Contents/Resources/mercurial_local/mercurial/osutil.so
Reason: image not found

Q: Why should it load mercurial libraries if the repo is Git?
Q: How can I work around this? (other than using command-line git?) 

Also, the stack strace is shown if I use github's clone in desktop button, if I copy the repo URL and try to clone it from SourceTree, the not a valid source path error is the same but no stack trace is shown, just an empty log.

[Seth · Accepted solution]

I think I've seen a similar error mentioned before, and the problem was that Git either wasn't installed, or wasn't being found by SourceTree. Are you using embedded git or system git?

[petruza]

Installing git and using it instead of the embedded fixed it. Thanx.