{"record":{"id":"5d5f06ad777cf901","repo":"microsoft/autogen","slug":"failed-to-validate-component","errorCode":null,"errorMessage":"Failed to validate component","messagePattern":"Failed to validate component","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"python/packages/autogen-studio/frontend/src/components/views/teambuilder/api.ts","lineNumber":93,"sourceCode":"}\n\n// move validationapi to its own class\n\nexport class ValidationAPI extends BaseAPI {\n  async validateComponent(\n    component: Component<ComponentConfig>\n  ): Promise<ValidationResponse> {\n    const response = await fetch(`${this.getBaseUrl()}/validate/`, {\n      method: \"POST\",\n      headers: this.getHeaders(),\n      body: JSON.stringify({\n        component: component,\n      }),\n    });\n\n    const data = await response.json();\n    if (!response.ok) {\n      throw new Error(data.message || \"Failed to validate component\");\n    }\n\n    return data;\n  }\n\n  async testComponent(\n    component: Component<ComponentConfig>,\n    timeout: number = 60\n  ): Promise<ComponentTestResult> {\n    const response = await fetch(`${this.getBaseUrl()}/validate/test`, {\n      method: \"POST\",\n      headers: this.getHeaders(),\n      body: JSON.stringify({\n        component: component,\n        timeout: timeout,\n      }),\n    });\n","sourceCodeStart":75,"sourceCodeEnd":111,"githubUrl":"https://github.com/microsoft/autogen/blob/027ecf0a379bcc1d09956d46d12d44a3ad9cee14/python/packages/autogen-studio/frontend/src/components/views/teambuilder/api.ts#L75-L111","documentation":"Thrown by ValidationAPI.validateComponent when POST /validate/ returns a non-2xx status. The server's own message is preferred when present; this string is the fallback. It means the component config (e.g. an LLM config or tool config JSON) failed server-side validation.","triggerScenarios":"Calling validationAPI.validateComponent(component) with a component whose config is malformed server-side: missing required fields (e.g. no model or api_key in an OpenAIConfig), wrong component_type, invalid JSON schema of config, or a 500 from the validate route. The message only appears when the error response body has no message field.","commonSituations":"Building a custom component in the Team Builder whose config omits required keys; pasting component JSON from an incompatible AutoGen Studio version; backend validation route crashing on an unexpected component_type.","solutions":["Inspect the thrown error message: it prefers data.message from the server, which names the actual invalid field.","Compare the component's config against a working built-in component of the same type.","POST the same payload to /api/validate/ with curl to see the full response body.","Check backend logs if the response is a bare 500 with no message."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":"// Cheap client-side pre-checks before calling the server\nconst required = ['config', 'component_type'];\nconst missing = required.filter((k) => component[k] == null);\nif (missing.length) throw new Error(`Component missing fields: ${missing.join(', ')}`);\nif (component.component_type === 'llm' && !component.config?.config_list?.length) {\n  throw new Error('LLM component requires a non-empty config_list');\n}","typeGuard":"const isComponent = (c: unknown): c is Component<ComponentConfig> =>\n  typeof c === 'object' && c !== null && 'component_type' in c && 'config' in c;","tryCatchPattern":"try {\n  const result = await validationAPI.validateComponent(component);\n  if (!result.isValid) showFieldErrors(result.errors);\n} catch (e) {\n  // e.message carries the server-side reason when available\n  setError(e instanceof Error ? e.message : 'Validation request failed');\n}","preventionTips":["Validate required config fields client-side before POSTing.","Diff new component JSON against a working built-in component of the same type.","Surface data.message from the server in the UI instead of swallowing it."],"tags":["http","typescript","frontend","autogen-studio","validation"],"backgroundTag":null,"analyzedSha":"027ecf0a379bcc1d09956d46d12d44a3ad9cee14","analyzedAt":"2026-08-15T03:38:00.719Z","schemaVersion":2},"datasetVersion":"2026-08-16T03:17:38.424Z"}