j@w1x8-dev:~/Documents/PDF Documents {} $ pdfx xhyve\ –\ Lightweight\ Virtualization\ on\ OS\ X\ Based\ on\ bhyve\ _\ pagetable.pdf Traceback (most recent call last): File "/usr/local/bin/pdfx", line 9, in <module> load_entry_point('pdfx==1.0.1', 'console_scripts', 'pdfx')() File "build/bdist.macosx-10.10-x86_64/egg/pdfx/cli.py", line 66, in main File "build/bdist.macosx-10.10-x86_64/egg/pdfx/__init__.py", line 137, in __init__ AttributeError: 'NoneType' object has no attribute 'items' j@w1x8-dev:~/Documents/PDF Documents {}