{"record":{"id":"b57c211b1840d6a0","repo":"plandex-ai/plandex","slug":"all-build-attempts-failed-v","errorCode":null,"errorMessage":"all build attempts failed: %v","messagePattern":"all build attempts failed: (.+?)","errorType":"http","errorClass":null,"httpStatus":500,"severity":"critical","filePath":"app/server/model/plan/build_race.go","lineNumber":289,"sourceCode":"\terrs := []error{}\n\terrChNumReceived := 0\n\n\tfor {\n\t\tselect {\n\t\tcase <-buildCtx.Done():\n\t\t\tlog.Printf(\"buildRace - context canceled\")\n\t\t\treturn raceResult{}, buildCtx.Err()\n\t\tcase err := <-errCh:\n\t\t\terrChNumReceived++\n\t\t\tlog.Printf(\"buildRace - error channel received %d: %v\\n\", errChNumReceived, err)\n\n\t\t\tif err != nil {\n\t\t\t\terrs = append(errs, err)\n\t\t\t}\n\n\t\t\tif errChNumReceived >= maxErrs {\n\t\t\t\tlog.Printf(\"buildRace - all attempts failed with %d errors\", len(errs))\n\t\t\t\treturn raceResult{}, fmt.Errorf(\"all build attempts failed: %v\", errs)\n\t\t\t}\n\n\t\t\tif !startedFallbacks {\n\t\t\t\tlog.Printf(\"buildRace - starting build fallbacks\")\n\t\t\t\tstartFallbacks(\"\") // since replacements failed, pass an empty string for comments -- this causes whole file build to classify comments first\n\t\t\t}\n\t\tcase res := <-resCh:\n\t\t\tlog.Printf(\"buildRace - got successful result\")\n\t\t\treturn res, nil\n\t\t}\n\t}\n}\n","sourceCodeStart":271,"sourceCodeEnd":302,"githubUrl":"https://github.com/plandex-ai/plandex/blob/e2d772072efadbe41d2946d97d79be55532dbab5/app/server/model/plan/build_race.go#L271-L302","documentation":"buildRace starts multiple competing build attempts (fast-apply/validation plus whole-file fallbacks) and tolerates up to maxErrs errors. When the error channel has delivered maxErrs errors with no successful result, it concludes every attempt failed and returns this aggregate error listing all collected errors.","triggerScenarios":"All racing build attempts error out: the initial replacement-based build fails, started fallbacks (fast apply and whole-file build) also fail, and the errCh receives maxErrs messages before any resCh result — commonly when the LLM provider is down or every attempt produces invalid output.","commonSituations":"API key/quota/rate-limit problems making all model calls fail, prolonged provider outage, or systematically malformed model output for the file being edited.","solutions":["Check the individual errors in the aggregate message — they usually share one root cause (auth, quota, network)","Verify model provider credentials, rate limits, and service status","Retry after the transient issue resolves; the race is designed for single-attempt flakiness, not total outage","Reduce input size / simplify the edit if attempts consistently fail on this file"],"exampleFix":"// before\nres, err := buildRace(...)\nif err != nil { return err }\n// after\nres, err := buildRace(...)\nif err != nil {\n    if strings.HasPrefix(err.Error(), \"all build attempts failed\") {\n        return fmt.Errorf(\"build failed after all attempts; check provider status and retry: %w\", err)\n    }\n    return err\n}","handlingStrategy":"retry","validationCode":"// before starting the build, confirm the provider is reachable\nif err := providerHealthCheck(ctx); err != nil {\n    return fmt.Errorf(\"skip buildRace, provider unavailable: %w\", err)\n}","typeGuard":"func isAggregateBuildFailure(err error) bool {\n    return err != nil && strings.HasPrefix(err.Error(), \"all build attempts failed:\")\n}","tryCatchPattern":"res, err := buildRace(...)\nif isAggregateBuildFailure(err) {\n    // inspect individual causes, back off, then retry once\n    time.Sleep(backoff)\n    res, err = buildRace(...)\n}\nif err != nil { return err }","preventionTips":["Monitor provider API status/quotas before long build sessions","Apply exponential backoff retries for aggregate failures — they indicate systemic, not single-attempt, problems","Log each attempt's error separately to identify the shared root cause quickly","Cap file/edit size so individual attempts don't fail systematically on context limits"],"tags":["go","race","llm","provider-failure"],"backgroundTag":"all-build-attempts-failed","analyzedSha":"e2d772072efadbe41d2946d97d79be55532dbab5","analyzedAt":"2026-09-05T20:56:53.631Z","contentChangedAt":"2026-09-05T20:56:53.631Z","schemaVersion":2},"datasetVersion":"2026-09-12T22:17:10.623Z"}