$ ./4.0.0-rc7/bin/install_compass
Downloading Compass... 729%
Installing the package...
Traceback (most recent call last):
 File "./4.0.0-rc7/bin/install_compass", line 173, in <module>
 download_and_install_compass()
 File "./4.0.0-rc7/bin/install_compass", line 161, in download_and_install_compass
 install_mac(pkg)
 File "./4.0.0-rc7/bin/install_compass", line 69, in install_mac
 '-mountpoint', tmp, dmg], stdout=fnull, stderr=fnull)
 File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 186, in check_call
 raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['hdiutil', 'attach', '-nobrowse', '-noautoopen', '-mountpoint', '/var/folders/x4/swc0_n7n6j10frpsyvprj57m0000gp/T/tmpppWP5m', '/var/folders/x4/swc0_n7n6j10frpsyvprj57m0000gp/T/tmp9hJmu0']' returned non-zero exit status 1
  

TypeError: Invalid Version: untagged-c4d5921acf05ae6d4201
    at new SemVer (/compass/node_modules/nuts-serve/node_modules/semver/semver.js:293:11)
    at compare (/compass/node_modules/nuts-serve/node_modules/semver/semver.js:569:10)
    at Function.gt (/compass/node_modules/nuts-serve/node_modules/semver/semver.js:598:10)
    at compareVersions (/compass/node_modules/nuts-serve/lib/versions.js:56:16)
    at Array.sort (native)
    at /compass/node_modules/nuts-serve/node_modules/lodash/index.js:12092:23
    at Function.tap (/compass/node_modules/nuts-serve/node_modules/lodash/index.js:5921:19)
    at baseWrapperValue (/compass/node_modules/nuts-serve/node_modules/lodash/index.js:2845:30)
    at LodashWrapper.wrapperValue (/compass/node_modules/nuts-serve/node_modules/lodash/index.js:6112:14)
    at /compass/node_modules/nuts-serve/lib/versions.js:78:14