An error breaks the installation of pandoc-pyplot about pandoc-pyplot HOT 3 CLOSED

Hi @cxzchange ,

The only thing I can think of is that your version of the base library is < 4.9. The monoid mappend operator <> was added in the Prelude in version 4.9 (see here). However, I mistakenly allowed older versions of base.

As of right now, I have edited the package metadata on Hackage (see here) so that this particular error will not occur: minimum version of base is now 4.9. If you want to try again, please update your list of cabal packages before installing:

cabal update # Make cabal see the revised version of pandoc-pyplot's metadata
cabal install pandoc-pyplot

Let me know if this fixes your problem.

I will release a new version of pandoc-pyplot that allows for older base versions as soon as I can.

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I've released a new version (1.0.3.0) which should fix this. @cxzchange let me know if I can close this issue.

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@LaurentRDC I'm sorry for replying you so late! Your work is effective for me. Thank you very much!

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