Can't find Mono runtime and/or Microsoft Font Validator

I installed FontBakery following the instructions here without issue. I then followed the instructions here for installing FontValidator. I still get this error:

>> com.google.fonts/check/037 with (('font[0]', 'WorkSans-VF.ttf'),)
   Checking with Microsoft Font Validator.
 * ERROR: Mono runtime and/or Microsoft Font Validator are not available!
 * ERROR: Failed with FileNotFoundError: [Errno 2] No such file or directory: 'FontValidator.exe': 'FontValidator.exe'
           File "~/Library/Python/3.7/lib/python/site-packages/fontbakery/checkrunner.py", line 350, in _exec_check
             for sub_result in result:  # Might raise.
           File "~/Library/Python/3.7/lib/python/site-packages/fontbakery/specifications/general.py", line 179, in com_google_fonts_check_037
             raise error
           File "~/Library/Python/3.7/lib/python/site-packages/fontbakery/specifications/general.py", line 166, in com_google_fonts_check_037
             subprocess.check_output(fval_cmd, stderr=subprocess.STDOUT)
           File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 376, in check_output
             **kwargs).stdout
           File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 453, in run
             with Popen(*popenargs, **kwargs) as process:
           File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 756, in __init__
             restore_signals, start_new_session)
           File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 1499, in _execute_child
             raise child_exception_type(errno_num, err_msg, err_filename)
         

   Result: ERROR

[weiweihuanghuang]

I ended up just renaming FontValidator to FontValidator.exe and it worked…

[felipesanches]

It seems to me that there is no real issue here. Please reopen otherwise.