Tencent/WeKnora · error

failed to get chat model: %w

Error message

failed to get chat model: %w

What it means

Thrown by processQuestionGenerationForKnowledge when modelService.GetChatModel fails to resolve the chat model (kb.SummaryModelID) used to generate auxiliary questions for chunks. Fires on missing/disabled model config or provider errors; the stage aborts before any LLM calls.

Source

Thrown at internal/application/service/knowledge_process.go:1610

	totalTextChunks = len(textChunks)

	if len(textChunks) == 0 {
		exitStatus = "no_text_chunks"
		logger.Infof(ctx, "No text chunks found for knowledge: %s", payload.KnowledgeID)
		return nil
	}

	// Sort chunks by StartAt for context building
	sort.Slice(textChunks, func(i, j int) bool {
		return textChunks[i].StartAt < textChunks[j].StartAt
	})

	// Initialize chat model
	chatModel, err := s.modelService.GetChatModel(ctx, kb.SummaryModelID)
	if err != nil {
		exitStatus = "get_chat_model_failed"
		logger.Errorf(ctx, "Failed to get chat model: %v", err)
		return fmt.Errorf("failed to get chat model: %w", err)
	}
	resolvedModelID = kb.SummaryModelID

	// Initialize embedding model and retrieval engine
	embeddingModel, err := s.modelService.GetEmbeddingModel(ctx, kb.EmbeddingModelID)
	if err != nil {
		exitStatus = "get_embedding_model_failed"
		logger.Errorf(ctx, "Failed to get embedding model: %v", err)
		return fmt.Errorf("failed to get embedding model: %w", err)
	}

	tenantInfo, err := s.tenantRepo.GetTenantByID(ctx, payload.TenantID)
	if err != nil {
		exitStatus = "get_tenant_failed"
		logger.Errorf(ctx, "Failed to get tenant info: %v", err)
		return fmt.Errorf("failed to get tenant info: %w", err)
	}
	ctx = context.WithValue(ctx, types.TenantInfoContextKey, tenantInfo)

View on GitHub (pinned to 988cbb0330)

Solutions

1. Verify the KB's summary model exists and is enabled for the tenant
2. Check model provider credentials and quotas
3. Retry question generation after fixing model configuration

When it happens

Trigger: Thrown at internal/application/service/knowledge_process.go:1610 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Tencent/WeKnora@988cbb0330 (2026-09-02). Data as JSON: /api/errors/28c2f91a0e82122b. Report an issue: GitHub.