calibre-debug -g throws:
Traceback (most recent call last):
File "debug.py", line 216, in <module>
File "debug.py", line 184, in main
File "H:\eBooks Library\calibre\library.zip\calibre\gui2\main.py", line 33, in
<module>
File "calibre\gui2\widgets.pyo", line 21, in <module>
File "calibre\utils\fonts\__init__.pyo", line 17, in <module>
RuntimeError: Failed to load fontconfig with error

LL load failed: The specifie
d module could not be found.