{"record":{"id":"64061c121e878095","repo":"eyaltoledano/claude-task-master","slug":"validation-error-64061c","errorCode":"VALIDATION_ERROR","errorMessage":"${error.message}","messagePattern":"\\$\\{error\\.message\\}","errorType":"error_code","errorClass":null,"httpStatus":null,"severity":"error","filePath":"mcp-server/src/core/direct-functions/validate-dependencies.js","lineNumber":79,"sourceCode":"\t\tdisableSilentMode();\n\n\t\treturn {\n\t\t\tsuccess: true,\n\t\t\tdata: {\n\t\t\t\tmessage: 'Dependencies validated successfully',\n\t\t\t\ttasksPath\n\t\t\t}\n\t\t};\n\t} catch (error) {\n\t\t// Make sure to restore normal logging even if there's an error\n\t\tdisableSilentMode();\n\n\t\tlog.error(`Error validating dependencies: ${error.message}`);\n\t\treturn {\n\t\t\tsuccess: false,\n\t\t\terror: {\n\t\t\t\tcode: 'VALIDATION_ERROR',\n\t\t\t\tmessage: error.message\n\t\t\t}\n\t\t};\n\t}\n}\n","sourceCodeStart":61,"sourceCodeEnd":84,"githubUrl":"https://github.com/eyaltoledano/claude-task-master/blob/c0c98d367c55296bfe69e65680625b6db437af02/mcp-server/src/core/direct-functions/validate-dependencies.js#L61-L84","documentation":"Catch-all return path of validateDependenciesDirect: any exception thrown while validating dependencies (after the file-exists check) is caught and re-packaged as a structured VALIDATION_ERROR whose message is the underlying error's message.","triggerScenarios":"The core dependency validation logic throws — malformed JSON in tasks.json, tasks array missing/corrupt, unreadable file (permissions), or a bug in dependency graph traversal triggered by cyclic or self-referencing dependencies.","commonSituations":"Hand-edited tasks.json with invalid JSON; schema drift after a version upgrade; tasks referencing dependency IDs that don't exist; read-permission problems.","solutions":["Read the wrapped message (and server logs showing 'Error validating dependencies') to find the root cause","Validate tasks.json is parseable JSON with a tasks array (jq . tasks.json)","Check task IDs referenced in dependencies actually exist in the file","Check file read permissions on tasks.json"],"exampleFix":"// before\n{ \"tasks\": [ { \"id\": 1, \"dependencies\": [99] } ] }  // dangling dep id -> VALIDATION_ERROR\n// after\n{ \"tasks\": [ { \"id\": 1, \"dependencies\": [] } ] }","handlingStrategy":"try-catch","validationCode":"const raw = fs.readFileSync(tasksPath, 'utf8');\nconst data = JSON.parse(raw); // throws early with a clearer parse error\nif (!Array.isArray(data.tasks)) throw new Error('tasks.json must contain a tasks array');","typeGuard":"function isValidTasksFile(p: string): boolean {\n  try { const d = JSON.parse(fs.readFileSync(p, 'utf8')); return Array.isArray(d.tasks); }\n  catch { return false; }\n}","tryCatchPattern":"const res = await validateDependenciesDirect({ tasksJsonPath });\nif (!res.success && res.error?.code === 'VALIDATION_ERROR') {\n  console.error('Dependency validation failed:', res.error.message);\n}","preventionTips":["Keep tasks.json valid JSON — prefer CLI/MCP tools over hand-editing","Ensure all dependency IDs referenced by tasks exist in the file","Re-validate after version upgrades that may change the schema"],"tags":["mcp","validation","dependency-graph"],"backgroundTag":"schema-validation-failed","analyzedSha":"c0c98d367c55296bfe69e65680625b6db437af02","analyzedAt":"2026-08-29T02:56:26.071Z","schemaVersion":2},"datasetVersion":"2026-08-29T07:17:48.351Z"}