Conda-Forge Packagesnotfounderror for Pygraphviz

I am trying to install pygraphviz but conda is not finding it in the channels. Below is the error I get. Conda-forge is already in the channel list and I tried with -c conda-forge but still does not work. I also tried bioconda channel and did not work.

> conda install -c anaconda pygraphviz
Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.

PackagesNotFoundError: The following packages are not available from current channels:

  - pygraphviz

Current channels:

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Pygraphviz should be there in bioconda and conda-forge according to the documentation, but I still cannot find the package. I also update conda conda update conda, and still no luck.

Is there something wrong here? or something I am missing?