OSError: wkhtmltopdf exited with non-zero code -6. error:

[xpguan]

Traceback (most recent call last):
File "crawler.py", line 165, in
crawler.run()
File "crawler.py", line 99, in run
pdfkit.from_file(htmls, self.name + ".pdf", options=options)
File "/usr/local/lib/python3.4/dist-packages/pdfkit/api.py", line 49, in from_file
return r.to_pdf(output_path)
File "/usr/local/lib/python3.4/dist-packages/pdfkit/pdfkit.py", line 159, in to_pdf
raise IOError("wkhtmltopdf exited with non-zero code {0}. error:\n{1}".format(exit_code, stderr))
OSError: wkhtmltopdf exited with non-zero code -6. error:
The switch --outline-depth, is not support using unpatched qt, and will be ignored.QXcbConnection: Could not connect to display

[xpguan]

换了wkhtmltopdf的版本之后就好了！

[rockyfire]

https://stackoverflow.com/questions/18758589/wkhtmltopdf-installation-error-on-ubuntu

进行到第三步的时候 连不上外网的ip就是下载不了

[HowinLoo]

@xpguan 请问换哪个版本的？

[dmitryTsatsarin]

install 0.12.4 version from official web-site
Works for me.

[d3prof3t]

I'm getting an exit code of -9 with 0.12.4.
wkhtmltopdf exited with non-zero code -9

Can someone please suggest how to fix this issue.