| # Errors & warnings |
| |
| In addition to rule violations, stylelint surfaces the following errors and warnings: |
| |
| ## CSS syntax error |
| |
| The chosen [PostCSS syntax](../about/syntaxes.md) was unable to parse the source. |
| |
| ## Parse error |
| |
| The chosen [PostCSS syntax](../about/syntaxes.md) successfully parsed, but one of the construct-specific parsers failed to parse either a media query, selector or value within that source. |
| |
| The construct-specific parsers are: |
| |
| - `postcss-media-query-parser` |
| - `postcss-selector-parser` |
| - `postcss-value-parser` |
| |
| ## Unknown rule error |
| |
| There is an unknown rule in the [configuration object](configure.md). |
| |
| ## Deprecation warning |
| |
| There is a deprecated rule in the [configuration object](configure.md). |
| |
| ## Invalid option warning |
| |
| There is a misconfigured rule in the [configuration object](configure.md). |
