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Exiting with failure status with Mech up, Ubuntu 16.04 4.13.0-43-generic #48~16.04.1-Ubuntu

See original GitHub issue

Hi there, I tried it with mech up but face this issue. Fact:

x091s@x091s-X250:/data/vmware$ uname -a
Linux x091s-X250 4.13.0-43-generic #48~16.04.1-Ubuntu SMP Thu May 17 12:56:46 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Command:

x091s@x091s-X250:/data/vmware$ mech init centos/6
Initializing mech
Loading metadata for box 'centos/6'
A `Mechfile` has been initialized and placed in this directory. You
are now ready to `mech up` your first virtual environment!
x091s@x091s-X250:/data/vmware$ mech up
Loading metadata for box 'centos/6' (1804.02)
Box 'centos/6' could not be found. Attempting to download...
URL: https://vagrantcloud.com/centos/boxes/6/versions/1804.02/providers/vmware_desktop.box
vmware_desktop.box [################################] 380024/380024 - 00:01:14
**Issue:**
Checking box 'centos/6' integrity...
tar: Pattern matching characters used in file names
tar: Use --wildcards to enable pattern matching, or --no-wildcards to suppress this warning
tar: *.vmx: Not found in archive
tar: Exiting with failure status due to previous errors
Bringing machine up...
Traceback (most recent call last):
  File "/usr/local/bin/mech", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python2.7/dist-packages/mech/__main__.py", line 39, in main
    return Mech(arguments)()
  File "/usr/local/lib/python2.7/dist-packages/mech/command.py", line 71, in __call__
    obj = klass(arguments)
  File "/usr/local/lib/python2.7/dist-packages/mech/mech.py", line 605, in up
    started = vmrun.start(gui=gui)
  File "/usr/local/lib/python2.7/dist-packages/mech/vmrun.py", line 143, in start
    return self.vmrun('start', self.vmx_file, 'gui' if gui else 'nogui', quiet=quiet)
  File "/usr/local/lib/python2.7/dist-packages/mech/vmrun.py", line 104, in vmrun
    logger.debug(" ".join("'{}'".format(c.replace("'", "\\'")) if ' ' in c else c for c in cmds))
  File "/usr/local/lib/python2.7/dist-packages/mech/vmrun.py", line 104, in <genexpr>
    logger.debug(" ".join("'{}'".format(c.replace("'", "\\'")) if ' ' in c else c for c in cmds))
TypeError: argument of type 'NoneType' is not iterable