nvim does not see "mason/bin"-directory

[thomas-haslwanter]

I am trying to make mason work on a fresh windows system, where I set up neovim with kickstart.nvim.

Problem:

• the plugin "black.nvim" is not working, when black is installed with mason.

Details:

• The command :call Black() returns E117: Unknown function: Black
• The command !where black correctly indicates ~\.config\nvim-data\mason\bin\black.cmd. Note that [black.cmd] works correctly in the terminal.
• The command :UpdateRemotePlugins produces function remote#host#UpdateRemotePlugins[6] .. <SNR>52_RegistrationCommands[13]..remote#host#RegisterPlugin, line 5 \\ Plugin "~/.config/nvim-data/lazy/black-nvim/rplugin/python3/__pycache__" is already registered
• After installing black externally, with pip install black, I can use UpdateRemotePlugins without any errors, nvim sees both(!) versions of Black, and then :call Black() runs without problems.

So it looks as if the mason-version of the plugin is not properly seen by nvim.

Version:

• neovim 0.9.4
• Python 3.11.4