> For the complete documentation index, see [llms.txt](https://guide.cronuszen.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.cronuszen.com/gpcscripting/gpc-script-guide/troubleshooting/diagnostic-families.md).

# Diagnostic families

<table data-search="false"><thead><tr><th>Range</th><th>Phase</th><th>Meaning</th></tr></thead><tbody><tr><td><code>GPC10xx</code></td><td>lexer warnings</td><td>token recognized with a recoverable issue</td></tr><tr><td><code>GPC11xx</code></td><td>lexer errors</td><td>invalid/unterminated token or out-of-range literal</td></tr><tr><td><code>GPC2xxx</code></td><td>parser errors</td><td>grammar, delimiter, or required-form failure</td></tr><tr><td><code>GPC30xx</code></td><td>semantic warnings</td><td>valid source with suspicious/dead/suboptimal meaning</td></tr><tr><td><code>GPC40xx</code></td><td>semantic errors</td><td>invalid name, scope, array, flow, or declaration meaning</td></tr><tr><td><code>GPC51xx</code></td><td>compiler errors</td><td>code generation, argument, limit, or internal failure</td></tr><tr><td><code>GPC60xx</code></td><td>extended warnings</td><td>suspicious calculations, unused items, stack risk, or data width</td></tr><tr><td><code>GPC9xxx</code></td><td>function-specific</td><td>targeted API warnings</td></tr></tbody></table>

The catalog contains a few target-specific messages for non-Live modes because they exist in the compiler's diagnostic universe. This book's working target remains Zen Studio Live 32-bit.


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