{"record":{"id":"58ebe0df1d684fa5","repo":"facebook/docusaurus","slug":"mdx-compilation-failed-for-file-logger-path-file","errorCode":null,"errorMessage":"MDX compilation failed for file ${logger.path(filePath)}\nCause: ${error.message}\nDetails:\n${errorDetails}","messagePattern":"MDX compilation failed for file (.+?)\nCause: (.+?)\nDetails:\n(.+?)","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/docusaurus-mdx-loader/src/utils.ts","lineNumber":126,"sourceCode":"    return await processor.process({\n      content: preprocessedFileContent,\n      filePath,\n      frontMatter,\n      compilerName,\n    });\n  } catch (errorUnknown) {\n    const error = errorUnknown as Error;\n\n    // MDX can emit errors that have useful extra attributes\n    const errorJSON = JSON.stringify(error, null, 2);\n    const errorDetails =\n      errorJSON === '{}'\n        ? // regular JS error case: print stacktrace\n          (error.stack ?? 'N/A')\n        : // MDX error: print extra attributes + stacktrace\n          `${errorJSON}\\n${error.stack}`;\n\n    throw new Error(\n      `MDX compilation failed for file ${logger.path(filePath)}\\nCause: ${\n        error.message\n      }\\nDetails:\\n${errorDetails}`,\n      // TODO error cause doesn't seem to be used by Webpack stats.errors :s\n      {cause: errorUnknown},\n    );\n  }\n}\n","sourceCodeStart":108,"sourceCodeEnd":135,"githubUrl":"https://github.com/facebook/docusaurus/blob/3f483e80e326cc646b54b83d564b3f0c4881b9a6/packages/docusaurus-mdx-loader/src/utils.ts#L108-L135","documentation":"Thrown by compileToJSX() in @docusaurus/mdx-loader when the MDX/remark processor fails to compile a markdown/MDX file. It wraps the underlying error with the file path, message, and (for MDX errors) the JSON-serialized error attributes plus the stack trace, attaching the original as `cause`. This is the error you see in webpack stats when an MDX file is malformed.","triggerScenarios":"An MDX file with invalid JSX (<div> without closing tag), a remark/retext plugin throwing, unsupported MDX syntax, importing a nonexistent component, or invalid front matter that fails validateMDXFrontMatter. Any uncaught error inside processor.process() lands here.","commonSituations":"Writing JSX inside MDX with mismatched tags; referencing an undefined component via MDX provider; a custom remark plugin incompatible with the installed MDX version; malformed code fences; a typo in an mdx front-matter value.","solutions":["Read the full error: the 'Cause:' line gives the MDX message, 'Details:' gives line/column and the offending source.","Open the named filePath at the reported line and fix the JSX/markdown.","If a custom remark/retext plugin is involved, disable it temporarily to isolate the cause.","After fixing, rebuild; MDX errors are deterministic per file."],"exampleFix":"<!-- before -->\n<MyComp prop=\"x\">\n# Title\n<!-- after -->\n<MyComp prop=\"x\">\n  # Title\n</MyComp>","handlingStrategy":"try-catch","validationCode":"import {compile} from '@mdx-js/mdx';\n// pre-compile MDX files in a lint step:\nasync function mdxLints(file: string) {\n  try { await compile(await import('node:fs/promises').then(f => f.readFile(file, 'utf8'))); }\n  catch (e) { console.warn(`MDX lint failed: ${file}: ${(e as Error).message}`); }\n}","typeGuard":null,"tryCatchPattern":"try {\n  await compileToJSX({filePath, fileContent, frontMatter, options, compilerName});\n} catch (err) {\n  // err.cause is the original MDX error with position\n  throw new Error(`Build aborted: MDX error in ${filePath}`, {cause: err});\n}","preventionTips":["Lint JSX inside MDX in your editor (MDX language server).","Keep custom remark/retext plugins version-aligned with @docusaurus/mdx-loader.","Run the build locally before pushing; MDX errors are deterministic."],"tags":["mdx","compilation","webpack-loader","build","wrapped-error"],"backgroundTag":null,"analyzedSha":"3f483e80e326cc646b54b83d564b3f0c4881b9a6","analyzedAt":"2026-08-12T13:25:04.382Z","schemaVersion":2},"datasetVersion":"2026-08-12T18:17:37.767Z"}