{"record":{"id":"c24dfb693b1108f5","repo":"ruvnet/ruflo","slug":"q-learning-failed-to-load-model-err","errorCode":null,"errorMessage":"[Q-Learning] Failed to load model: ${err}","messagePattern":"\\[Q-Learning\\] Failed to load model: (.+?)","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"v3/@claude-flow/cli/src/ruvector/q-learning-router.ts","lineNumber":292,"sourceCode":"      const persistedEncoder = model.encoderVersion ?? 1;\n      if (persistedEncoder === ENCODER_VERSION) {\n        this.import(model.qTable);\n      } else {\n        console.warn(\n          `[Q-Learning] Encoder version mismatch (persisted=${persistedEncoder}, current=${ENCODER_VERSION}); resetting Q-table (see #2239).`,\n        );\n      }\n\n      // Restore stats\n      this.stepCount = model.stats.stepCount || 0;\n      this.updateCount = model.stats.updateCount || 0;\n      this.avgTDError = model.stats.avgTDError || 0;\n      this.epsilon = model.stats.epsilon || this.config.explorationInitial;\n      this.totalExperiences = model.metadata?.totalExperiences || 0;\n\n      return true;\n    } catch (err) {\n      console.warn(`[Q-Learning] Failed to load model: ${err}`);\n      return false;\n    }\n  }\n\n  /**\n   * Save model to persistence file\n   */\n  async saveModel(path?: string): Promise<boolean> {\n    const modelPath = path || this.config.modelPath;\n    try {\n      // Ensure directory exists\n      const dir = dirname(modelPath);\n      if (!existsSync(dir)) {\n        mkdirSync(dir, { recursive: true });\n      }\n\n      const model: PersistedModel = {\n        version: '1.0.0',","sourceCodeStart":274,"sourceCodeEnd":310,"githubUrl":"https://github.com/ruvnet/ruflo/blob/fa13ee4ad60ac2090b1480656eb233521790d640/v3/@claude-flow/cli/src/ruvector/q-learning-router.ts#L274-L310","documentation":"Log warning in loadModel: an error was caught while reading/parsing the persisted Q-learning model file, so the model is not restored (fresh Q-table state is used) and the failure reason is printed.","triggerScenarios":"Thrown at v3/@claude-flow/cli/src/ruvector/q-learning-router.ts:292 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Fix or remove the corrupted persisted Q-learning model file; the router starts with a fresh table when loading fails."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"fa13ee4ad60ac2090b1480656eb233521790d640","analyzedAt":"2026-08-18T21:34:22.708Z","contentChangedAt":"2026-08-18T21:34:22.708Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}