Issue when running build.py

[Blake777999]

Hi All,
I am trying to run the build.py command but I get this error. I am on a MacBook and installed the CMake app but I don't how what I need to do in the app to get build.py to work. Here is the error I am getting.

SyntaxWarning: invalid escape sequence '\d'
  m = re.search('Snapshot v(\d+)\.(\d+)\.(\d+)(-([\w\-]+).(\d+))?', log)
sh: cmake: command not found

Thanks

[martinwork]

Check https://github.com/lancaster-university/codal-microbit-v2/issues?q=is%3Aissue+cmake