If you ever run into any issues such as "nvim-tree.renderer.help not found", try this:
Enter this in command mode to show you the path to
= vim.fn.stdpath('data')
cd in there and rm -rf this directory site/pack/packer/
This would happen if you used to have the old packer setup installed. Those files could cause issues.
Got this from here: https://old.reddit.com/r/neovim/comments/1640z3m/nvimtree_breaks_with_theme_change/