map TComment_gcc get E354: Invalid register name: '$'

[ruinb0w]

I maped tcomment like below

vim.keymap.set('n', "<leader>c", '<plug>TComment_gcc')
vim.keymap.set('v', "<leader>c", '<plug>TComment_gc')

The second line works great, but the first one throws the error E354: Invalid register name: '$'

[tomtom]

Which version of vim do you use? I still use vim 8.2. <Plug>TComment_gcc should be something like nnoremap <Plug>TComment_gcc :<c-u>call tcomment#ResetOption() \| if v:count > 0 \| call tcomment#SetOption("count", v:count) \| endif \| let w:tcommentPos = getpos(".") \| set opfunc=TCommentOpFunc_gcc<cr>g@$ Does this work when defined manually? (You might want to check if the TCommentOpFunc_gcc function exists since I'm not 100% sure.)

[ruinb0w]

I tried your code, but still same as before E354: Invalid register name: '$'. My vim is nvim 0.9
by the way, I'm using vim.g.tcomment_opleader1 = '<leader>c'" instead, and it works great.

[tomtom]

I don't know nvim so I cannot really help you with that. Do you really have to escape the pipe character when using the vim.keymap.set() function? I could imagine just the bar "|" with not backslash should work. The backslash is there as a work-around for vim's :map command.