Hi Firedrakers, I am trying to update firedrake on mac. The following error turns out. error: cannot open .git/FETCH_HEAD: Permission denied Traceback (most recent call last): File "/Users/master/firedrake/bin/firedrake-update", line 957, in <module> git_update("firedrake") File "/Users/master/firedrake/bin/firedrake-update", line 381, in git_update check_call(["git", "pull"]) File "/Users/master/firedrake/bin/firedrake-update", line 228, in check_call subprocess.check_call(arguments, env=env) File "/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 540, in check_call raise CalledProcessError(retcode, cmd) subprocess.CalledProcessError: Command '['git', 'pull']' returned non-zero exit status 1 How can I resolve it? Thanks in advance. Angwenyi