googleapis/mcp-toolbox · error

unable to initialize embedding model %q: %w

Error message

unable to initialize embedding model %q: %w

What it means

Error "unable to initialize embedding model %q: %w" thrown in googleapis/mcp-toolbox.

Source

Thrown at internal/server/server.go:175

	for name := range authServicesMap {
		authServiceNames = append(authServiceNames, name)
	}
	l.InfoContext(ctx, fmt.Sprintf("Initialized %d authServices: %s", len(authServicesMap), strings.Join(authServiceNames, ", ")))

	// Initialize and validate embedding models from configs.
	embeddingModelsMap := make(map[string]embeddingmodels.EmbeddingModel)
	for name, ec := range cfg.EmbeddingModelConfigs {
		em, err := func() (embeddingmodels.EmbeddingModel, error) {
			_, span := instrumentation.Tracer.Start(
				ctx,
				"toolbox/server/embeddingmodel/init",
				trace.WithAttributes(attribute.String("model_type", ec.EmbeddingModelConfigType())),
				trace.WithAttributes(attribute.String("model_name", name)),
			)
			defer span.End()
			em, err := ec.Initialize(ctx)
			if err != nil {
				return nil, fmt.Errorf("unable to initialize embedding model %q: %w", name, err)
			}
			return em, nil
		}()
		if err != nil {
			return nil, nil, nil, nil, nil, nil, err
		}
		embeddingModelsMap[name] = em
	}
	embeddingModelNames := make([]string, 0, len(embeddingModelsMap))
	for name := range embeddingModelsMap {
		embeddingModelNames = append(embeddingModelNames, name)
	}
	l.InfoContext(ctx, fmt.Sprintf("Initialized %d embeddingModels: %s", len(embeddingModelsMap), strings.Join(embeddingModelNames, ", ")))

	toolsMap, err := initializeTools(ctx, cfg, sourcesMap, instrumentation, l)
	if err != nil {
		return nil, nil, nil, nil, nil, nil, err
	}

View on GitHub (pinned to 8cc6e09de2)

When it happens

Trigger: Thrown at internal/server/server.go:175 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of googleapis/mcp-toolbox@8cc6e09de2 (2026-09-05). Data as JSON: /api/errors/0ae381b6dbdf0042. Report an issue: GitHub.