{"record":{"id":"4cf289a68da29bb1","repo":"vitest-dev/vitest","slug":"failed-to-initialize-projects-there-were-errors-d","errorCode":null,"errorMessage":"Failed to initialize projects. There were errors during projects setup. See below for more details.","messagePattern":"Failed to initialize projects\\. There were errors during projects setup\\. See below for more details\\.","errorType":"exception","errorClass":"AggregateError","httpStatus":null,"severity":"error","filePath":"packages/vitest/src/node/projects/resolveProjects.ts","lineNumber":404,"sourceCode":"      { root: projectRoot, configFile },\n      path,\n    )))\n  }\n\n  const settled = await Promise.allSettled(promises)\n  const errors: Error[] = []\n  const entries: ResolvedProjectEntry[] = []\n  for (const result of settled) {\n    if (result.status === 'rejected') {\n      errors.push(result.reason)\n    }\n    else {\n      entries.push(result.value)\n    }\n  }\n\n  if (errors.length) {\n    throw new AggregateError(\n      errors,\n      'Failed to initialize projects. There were errors during projects setup. See below for more details.',\n    )\n  }\n\n  return flattenContainerEntries(context, entries)\n}\n\n/**\n * Replace container entries (file-based configs that declare `projects`) with\n * the projects they declare, recursively. A container behaves like the root\n * config: it doesn't run tests and never gets a Vite server; its projects\n * extend it by default and their names are prefixed with the container's name.\n */\nasync function flattenContainerEntries(\n  context: ProjectsResolutionContext,\n  entries: ResolvedProjectEntry[],\n): Promise<ResolvedProjectEntry[]> {","sourceCodeStart":386,"sourceCodeEnd":422,"githubUrl":"https://github.com/vitest-dev/vitest/blob/1fa9837ec26533512fdcad8baebf249771bd340a/packages/vitest/src/node/projects/resolveProjects.ts#L386-L422","documentation":"Project entries are resolved concurrently (Promise.allSettled). If any resolution rejects, the settled results are partitioned into entries and errors; when errors is non-empty, Vitest wraps them in an AggregateError with this message so the user sees every setup failure at once rather than just the first.","triggerScenarios":"One or more project config files fail to load/resolve (syntax error, invalid config, missing dependency, throw during config evaluation), producing rejected promises collected into the AggregateError.","commonSituations":"A syntax/typing error in a vitest.config file, an import that fails (missing dep), a config that throws, or an invalid option - across one or more workspace projects.","solutions":["Read each error inside the AggregateError to find which project/config failed.","Open the named config file and fix the underlying syntax/import/option error.","Temporarily reduce to a single project to isolate the failing config.","Re-run after each fix; remaining errors will surface in the next AggregateError."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":"// Optionally pre-validate each config loads before the full run.\nimport { loadConfigFromFile } from 'vite'\nasync function validateConfigs(files: string[]) {\n  for (const f of files) {\n  try { await loadConfigFromFile({ command: 'serve', mode: 'test' }, f) }\n  catch (err) { throw new Error(`Config ${f} failed to load: ${(err as Error).message}`) }\n  }\n}","typeGuard":null,"tryCatchPattern":"try {\n  await resolveProjects(...)\n} catch (err) {\n  if (err instanceof AggregateError) {\n  for (const e of err.errors) console.error('Project setup error:', e)\n  // fix each, then re-run\n  }\n  throw err\n}","preventionTips":["Typecheck/lint all vitest.config files in CI.","Load each config in isolation to surface individual errors early.","Keep config files small and dependency-light."],"tags":["projects","config","aggregate-error","setup"],"backgroundTag":null,"analyzedSha":"1fa9837ec26533512fdcad8baebf249771bd340a","analyzedAt":"2026-08-11T16:11:39.638Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}