title: Error when trying to use nbconvert to create pdf from ipynb
body: <p>I am relatively new to python and I do not know how to debug. I have a <code>.ipynb</code> that I am trying to convert to a pdf file. When I run this in the command line I am getting the following errors. </p>
  
  <pre><code>[NbConvertApp] Converting notebook HW1_notebook.ipynb to pdf
  Traceback (most recent call last):
    File "C:\Users\Owner\Anaconda3\lib\site-packages\traitlets\traitlets.py", line 528, in get
  value = obj._trait_values[self.name]
  KeyError: 'command'
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "C:\Users\Owner\Anaconda3\lib\site-packages\traitlets\traitlets.py", line 528, in get
  value = obj._trait_values[self.name]
  KeyError: 'inkscape'
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "C:\Users\Owner\Anaconda3\lib\site-packages\nbconvert\preprocessors\svg2pdf.py", line 67, in _inkscape_default
  rkey = winreg.OpenKey(wr_handle, "SOFTWARE\\Classes\\inkscape.svg\\DefaultIcon")
  FileNotFoundError: [WinError 2] The system cannot find the file specified
  </code></pre>
  
  <p>I found this issue reported on <a href="https://github.com/jupyter/notebook/issues/3499" rel="nofollow noreferrer">github</a> which I know isn't the same error, but I followed the things that worked for other people with no luck fixing my issue. I tried reinstalling Inkscape. I really don't know where to go from here. Any help is appreciated.</p>