Compiling error: Failed to fetch tree-sitter grammars: unknown field comment-token, expected name or `source

[waldauf]

Hi,

I'm trying to compile up-to-date Helix version according doc web but I got stuck on the error with tree-sitter:

❯ cargo install --path helix-term --locked

warning: some crates are on edition 2021 which defaults to `resolver = "2"`, but virtual workspaces default to `resolver = "1"`
note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
warning: some crates are on edition 2021 which defaults to `resolver = "2"`, but virtual workspaces default to `resolver = "1"`
note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
  Installing helix-term v0.6.0 (/private/tmp/helix/helix-term)
    Updating crates.io index
   Compiling libc v0.2.147
~
   Compiling helix-term v0.6.0 (/private/tmp/helix/helix-term)
   Compiling grep-searcher v0.1.11
error: failed to run custom build command for `helix-term v0.6.0 (/private/tmp/helix/helix-term)`

Caused by:
  process didn't exit successfully: `/private/tmp/helix/target/release/build/helix-term-f2f42c53b0e094e5/build-script-build` (exit status: 101)
  --- stderr
  thread 'main' panicked at 'Failed to fetch tree-sitter grammars: unknown field `comment-token`, expected `name` or `source`
  in `grammar`
  ', helix-term/build.rs:5:26
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
error: failed to compile `helix-term v0.6.0 (/private/tmp/helix/helix-term)`, intermediate artifacts can be found at `/private/tmp/helix/target`.
To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path.

I don't think it's a bug, more my not knowing of Rust. Can I ask you for help?

OS: Mac
Cargo: 1.72.0 (26bba4830 2023-08-26)

[kirawi]

Do you have a custom languages.toml where you're building? It's basically encountering:

[[grammar]]
name = ".."
comment-token = ".."

instead of

[[language]]
name = ".."
comment-token = ".."

[[grammar]]
name = ".."
source = { .. }

[waldauf]

I'm building Helix from an up-to-date cloned git repository, master branch:

❯ fd languages
book/src/guides/adding_languages.md
book/src/languages.md
helix-core/tests/data/indent/languages.toml
helix-term/tests/test/languages/
languages.toml

File content of cloned languages.toml is identical with one on github.

[kirawi]

The user's languages.toml in ~/.config/helix/ is merged with the one in the repo.

[waldauf]

I didn't read carefully your first question about "custom" languages.toml. I fixed it and now it's working.

Thank you for your help @kirawi!