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Getting this error while running this in my Jupyter notebook CalledProcessError: Command '['dot', '-Tpng', '-O', 'simple_diagram']' returned non-zero exit status 1. [stderr: b'Format: "png" not recognized. Use one of:\r\n'] #271

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Nikhilkohli1 opened this issue Sep 10, 2020 · 2 comments
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Getting this error while running this in my Jupyter notebook CalledProcessError: Command '['dot', '-Tpng', '-O', 'simple_diagram']' returned non-zero exit status 1. [stderr: b'Format: "png" not recognized. Use one of:\r\n'] #271

Nikhilkohli1 opened this issue Sep 10, 2020 · 2 comments

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@Nikhilkohli1
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@Nikhilkohli1
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Resolved.

Apparently it was related to Graphviz installation in windows.

Below are the steps which resolved this for me-

if it is already installed through pip-
pip uninstall graphiz

conda install graphviz
conda install python-graphviz

@mledoze
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mledoze commented Oct 20, 2020

I got the same error on Windows 10 after installing graphviz with Scoop. This helped me: https://mamchenkov.net/wordpress/2019/01/15/graphviz-dot-format-png-not-recognized/

Simply run dot -c after the installation.

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