zed-industries/zed · error

Failed to parse tasks file at {path}

Error message

Failed to parse tasks file at {path}

What it means

The extension's tasks file at {path} was read successfully but could not be parsed — deserialization of the task templates JSON/TOML failed. This is a content/format error distinct from the read error: the schema of the tasks file does not match what TaskTemplates expects.

Source

Thrown at crates/extension_cli/src/main.rs:504

        .iter()
        .all(|author| author.trim().is_empty())
    {
        return Err(ExtensionManifestValidationError::MissingAuthors);
    }

    let repository = manifest
        .repository
        .as_ref()
        .map(|repository| repository.trim())
        .filter(|repository| !repository.is_empty())
        .ok_or(ExtensionManifestValidationError::MissingRepository)?;

    let repository_url = repository
        .parse::<Url>()
        .map_err(|_| ExtensionManifestValidationError::InvalidRepository(repository.to_string()))?;

    if repository_url.host_str().is_none() {
        return Err(ExtensionManifestValidationError::InvalidRepository(
            repository.to_string(),
        ));
    };

    if !manifest.language_model_providers.is_empty() {
        return Err(ExtensionManifestValidationError::LanguageModelProvidersUnsupported);
    }

    Ok(())
}

fn test_grammars(
    manifest: &ExtensionManifest,
    extension_path: &Path,
    wasm_store: &mut WasmStore,
) -> Result<HashMap<String, Language>> {
    let mut grammars = HashMap::default();
    let grammars_dir = extension_path.join("grammars");

View on GitHub (pinned to 9d272b0363)

Solutions

1. Fix the task template entries per the parse error — typically wrong field names/types in a task definition
2. Compare against the documented tasks.json schema and known-good extension examples

When it happens

Trigger: Thrown at crates/extension_cli/src/main.rs:480 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Parsing and encoding errors: unexpected token, malformed input — why parsers reject input and how to find the real culprit.

AI-assisted analysis of zed-industries/zed@9d272b0363 (2026-08-20). Data as JSON: /api/errors/0bb69e9f1200a3c0. Report an issue: GitHub.