There are annoying logs directory already exists logs

[fliiiix]

pandoc tests/sample.md -o sample.tex --filter pandoc-plantuml
Could not create directory "plantuml-images"
Could not create directory "plantuml-images"
Could not create directory "plantuml-images"

We need this fix from pandocfilters:
jgm/pandocfilters#104

[fliiiix]

merged and released as 1.5.1, but i still need to test it

[lixueyi83]

I can test your fixes if you don't mind? How can I get the updated version?

[Felixoid]

I'm sorry, I'm not so experienced in venv and pip to provide command on how to get the code from https://github.com/Felixoid/pandocfilters/tree/master and use it.