microsoft/autogen · error · Error

Unable to generate valid configuration

Error message

Unable to generate valid configuration

What it means

Error thrown by handleSave in autogen-studio's team builder when syncToJson() returns a falsy value. syncToJson serializes the builder's UI state into a Team Component config; a null result means the current builder state could not be converted into a valid configuration, so saving would persist garbage.

Source

Thrown at python/packages/autogen-studio/frontend/src/components/views/teambuilder/builder/builder.tsx:220

      setValidationResults(validationResult);
      // if (validationResult.is_valid) {
      //   messageApi.success("Validation successful");
      // }
    } catch (error) {
      console.error("Validation error:", error);
      messageApi.error("Validation failed");
    } finally {
      setValidationLoading(false);
    }
  }, [syncToJson]);

  // Handle save
  const handleSave = useCallback(async () => {
    try {
      const component = syncToJson();
      if (!component) {
        throw new Error("Unable to generate valid configuration");
      }

      if (onChange) {
        const teamData: Partial<Team> = team
          ? {
              ...team,
              component,
              created_at: undefined,
              updated_at: undefined,
            }
          : { component };
        await onChange(teamData);
        resetHistory();
      }
    } catch (error) {
      messageApi.error(
        error instanceof Error
          ? error.message

View on GitHub (pinned to 027ecf0a37)

Solutions

1. Run the builder's Validate action first (the same view exposes validation) and fix reported issues before saving.
2. Fill required fields on every participant (model selection, name) so syncToJson can produce a component.
3. If it persists after the form looks complete, re-open the builder or re-add the offending component to reset its config state.

Example fix

// before
const component = syncToJson();
if (!component) throw new Error("Unable to generate valid configuration");

// after
await handleValidate(); // surface per-field validation errors first
const component = syncToJson();
if (!component) {
  messageApi.error("Fix validation errors before saving.");
  return;
}

const component = syncToJson();
if (!component) {
  messageApi.error("The builder has incomplete fields; run Validate to see what is missing.");
  return;
}

const isValidTeamComponent = (c: Component | null | undefined): c is Component =>
  Boolean(c && c.component_type); // adjust to required fields of your config schema

try { await handleSave(); }
catch (e) {
  if (e instanceof Error && e.message === "Unable to generate valid configuration") {
    messageApi.error("Fix validation issues before saving.");
  }
}

When it happens

Trigger: Clicking Save while the builder tree is incomplete — e.g. a participant without required fields, an unselected model, or nodes whose component config has not been initialized; a builder state produced by dragging in a component and never editing it.

Common situations: Users adding a team member but leaving required model/endpoint fields blank; partially loaded builder state after a failed import; components added programmatically (gallery import) missing default config that syncToJson expects.

Related errors

• Invalid session configuration
• Failed to validate component
• useAuth must be used within an AuthProvider
• Invalid server URL configuration
• Failed to delete team

AI-assisted analysis of microsoft/autogen@027ecf0a37 (2026-08-15). Data as JSON: /api/errors/4ad381a526fc1660. Report an issue: GitHub.