Error Reference
Error Reference
Section titled “Error Reference”All error types thrown by the library across all languages.
Errors that can occur when using the tree-sitter language pack.
Covers language lookup failures, parse errors, query errors, and I/O issues.
Feature-gated variants are included when config, download, or related
features are enabled.
| Variant | Message | Description |
|---|---|---|
LanguageNotFound |
Language ‘{0}’ not found | The requested language name (or alias) was not found in the registry. |
DynamicLoad |
Dynamic library load error: {0} | A dynamic shared library could not be loaded at runtime. |
NullLanguagePointer |
Language function returned null pointer for ‘{0}’ | The tree-sitter language function returned a null pointer for the given language name. |
ParserSetup |
Failed to set parser language: {0} | The language could not be applied to the parser (e.g., ABI version mismatch). |
LockPoisoned |
Registry lock poisoned: {0} | An internal RwLock or Mutex was poisoned by a previous panic. |
Config |
Configuration error: {0} | A configuration file or value was invalid or could not be applied. |
ParseFailed |
Parse failed: parsing returned no tree | The tree-sitter parser returned no tree for the given source input. |
QueryError |
Query error: {0} | A tree-sitter query could not be compiled or executed. |
InvalidRange |
Invalid byte range: {0} | A byte range was invalid (e.g., end before start, or out of bounds). |
Download |
Download error: {0} | A parser download from GitHub releases failed. |
ChecksumMismatch |
Checksum mismatch for ‘{file}’: expected {expected}, got {actual} | The downloaded file’s SHA-256 digest did not match the manifest’s expected value. |
CacheLock |
Download cache lock error: {0} | The cross-process download cache lock file could not be acquired or created. |