Guttentags does not support any file?

[foersben]

I am using neovim 0.9 with ctags 1:6:0.0-1 and I just installed Gutentags to get started with vimtex.

I get for each and every file I open (whether latex or something else):

gutentags: Scanning buffer '*.*' for gutentags setup...
gutentags: No gutentags support for this buffer.

e.g.:

gutentags: Scanning buffer 'init.lua' for gutentags setup...
gutentags: No gutentags support for this buffer.
gutentags: Scanning buffer 'lua/airline.lua' for gutentags setup...
gutentags: No gutentags support for this buffer.
gutentags: Scanning buffer 'lua/commands.lua' for gutentags setup...
gutentags: No gutentags support for this buffer.
gutentags: Scanning buffer 'lua/keymaps.lua' for gutentags setup...
gutentags: No gutentags support for this buffer.
gutentags: Scanning buffer 'lua/plugins.lua' for gutentags setup...
gutentags: No gutentags support for this buffer.
gutentags: Scanning buffer 'lua/settings.lua' for gutentags setup...
gutentags: No gutentags support for this buffer.

Additionally, I can't execute GutentagsUpdate because the command cannot be found by neovim.

[SuryaThiru]

I'm encountering the same issue suddenly with vim for opening any files. I also can't seem to execute any of the commands.

Anyway I can identify the source of the problem?

I am able to generate the tags file by running ctags on my project root.