{"record":{"id":"a5d1adf164ffe3f7","repo":"langflow-ai/langflow","slug":"component-templates-are-still-initializing-please","errorCode":null,"errorMessage":"Component templates are still initializing. Please try again in a few seconds.","messagePattern":"Component templates are still initializing\\. Please try again in a few seconds\\.","errorType":"http","errorClass":"HTTPException","httpStatus":503,"severity":"error","filePath":"src/backend/base/langflow/api/v1/endpoints.py","lineNumber":1362,"sourceCode":"    # not tied to a single owned resource, so the deny-only primitive is used\n    # instead of an ``ensure_*_permission`` guard.\n    external_context = get_current_external_access_context()\n    if external_context is not None and not external_access_allows(\"create\", external_context):\n        raise HTTPException(\n            status_code=status.HTTP_403_FORBIDDEN,\n            detail=\"External credentials do not allow this action\",\n        )\n\n    settings_service = get_settings_service()\n    settings = settings_service.settings\n    all_known = None\n    if _requires_component_hash_lookups(settings, user):\n        # Lazily compute hash lookups if they haven't been built yet\n        # (e.g. during startup before the cache is fully populated).\n        get_component_hash_lookups_for_validation()\n        all_known = component_cache.all_known_hashes\n        if all_known is None:\n            raise HTTPException(\n                status_code=status.HTTP_503_SERVICE_UNAVAILABLE,\n                detail=\"Component templates are still initializing. Please try again in a few seconds.\",\n            )\n\n    # In admin-only mode, non-admin users may create/refresh only known server\n    # templates. Truly custom code creation remains restricted to administrators.\n    if (\n        getattr(settings, \"custom_component_admin_only\", False) is True\n        and not user.is_superuser\n        and not code_hash_matches_any_template(raw_code.code, all_known)\n    ):\n        raise HTTPException(\n            status_code=status.HTTP_403_FORBIDDEN,\n            detail=\"Custom component creation is restricted to administrators\",\n        )\n\n    if not settings.allow_custom_components and not code_hash_matches_any_template(raw_code.code, all_known):\n        # Allow updating to a known server template (core component update),","sourceCodeStart":1344,"sourceCodeEnd":1380,"githubUrl":"https://github.com/langflow-ai/langflow/blob/976ec789d2886a86de109c044d089d68e96c9a35/src/backend/base/langflow/api/v1/endpoints.py#L1344-L1380","documentation":"Error \"Component templates are still initializing. Please try again in a few seconds.\" thrown in langflow-ai/langflow.","triggerScenarios":"Occurs when a custom component request arrives while the component template cache is still warming up after server start.","commonSituations":"See trigger scenarios.","solutions":["Wait a few seconds and retry; component templates are still loading at startup.","Check server logs for component loading errors if the message persists."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"976ec789d2886a86de109c044d089d68e96c9a35","analyzedAt":"2026-08-14T18:23:12.227Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}