Version Mismatch

[lycheeje11y]

Opening a cpp file, I get this:

⛔ Warning (treesit): Cannot activate tree-sitter, because language grammar for c is unavailable (version-mismatch): 15

And likewise for opening a python file:

⛔ Warning (treesit): The installed language grammar for python cannot be located or has problems (version-mismatch): 15

This is my config

(use-package treesit-auto
  :ensure t
  :config
  (setq treesit-auto-install 'prompt) ;; auto-install grammars when missing
  (global-treesit-auto-mode))

I'm not sure if this is an bug from my end or not. Any ideas on how to fix this? Thanks.

[sevillaarvin]

It's because the grammar it builds is incompatible with the tree-sitter library of your emacs.

1. Check the supported tree-sitter abi version of emacs (execute function call in emacs):

(treesit-library-abi-version)  ; may return 14, 15, or some tree-sitter abi version number

2. Then check the installed language grammar abi version. You can see the source repo in treesit-auto-recipe-list from treesit-auto.el, e.g., for c it's https://github.com/tree-sitter/tree-sitter-c. Then you can search for the ABI version: TREE_SITTER_ABI_VERSION abi_version

If there is a mismatch, the solution can either be to update emacs or manually install the grammar which has a version mismatch, and specify the commit/reference where the abi version matches.

[renzmann]

Thanks for bringing up the issue, and sorry for the delay. In a similar vein, when I do a fresh build I wind up here:

 ■  Warning (treesit): The installed language grammar for cobol cannot be located or has problems (symbol-error): The specified procedure could not be found.
 ■  Warning (treesit): The installed language grammar for hyprlang cannot be located or has problems (version-mismatch): 15
 ■  Warning (treesit): The installed language grammar for jsdoc cannot be located or has problems (version-mismatch): 15
 ■  Warning (treesit): The installed language grammar for magik cannot be located or has problems (version-mismatch): 15
 ■  Warning (treesit): The installed language grammar for nu cannot be located or has problems (version-mismatch): 15
 ■  Warning (treesit): The installed language grammar for perl cannot be located or has problems (version-mismatch): 15
 ■  Warning (treesit): The installed language grammar for php cannot be located or has problems (version-mismatch): 15
 ■  Warning (treesit): The installed language grammar for solidity cannot be located or has problems (version-mismatch): 15
 ■  Warning (treesit): The installed language grammar for sql cannot be located or has problems (version-mismatch): 15
 ■  Warning (treesit): Error encountered when installing language grammar: (treesit-error Command: cc -fPIC -c -I. parser.c Error output: cc1.exe: fatal error: parser.c: No such file or directory
compilation terminated.
)
 ■  Warning (treesit): The installed language grammar for typespec cannot be located or has problems (version-mismatch): 15
 ■  Warning (treesit): The installed language grammar for vue cannot be located or has problems (version-mismatch): 15

Now I'm coming in a bit stale here and this is my first time encountering the word "ABI version" so I might be a bit lost for a while before I know what the right solution for treesit-auto is. If folks have an idea definitely let me know in a PR

[thromer]

This often works for me:

1. clone the repo for the grammar
2. checkout a tag and run make
3. look at the ABI version of the resulting so file (I use check_treesit_abi.py from pending PR Add documentation for :abi14-revision and version-mismatch errors. #142)
4. Continue trying tags until I've found the freshest tag with ABI 14.
5. Submit a PR.

I just did this exercise for YAML and it turned out to be the most recent tag in the repo (PR #143).