XTLS/Xray-core · error

failed to build outbound handler for protocol

Error message

failed to build outbound handler for protocol 

What it means

Error "failed to build outbound handler for protocol " thrown in XTLS/Xray-core.

Source

Thrown at infra/conf/xray.go:366

			return nil, errors.New("failed to build Mux config").Base(err)
		}
		senderSettings.MultiplexSettings = ms
	}

	settings := []byte("{}")
	if c.Settings != nil {
		settings = ([]byte)(*c.Settings)
	}
	rawConfig, err := outboundConfigLoader.LoadWithID(settings, c.Protocol)
	if err != nil {
		return nil, errors.New("failed to load outbound detour config for protocol ", c.Protocol).Base(err)
	}
	if err := validateOutboundTransportSecurity(rawConfig, senderSettings); err != nil {
		return nil, err
	}
	ts, err := rawConfig.(Buildable).Build()
	if err != nil {
		return nil, errors.New("failed to build outbound handler for protocol ", c.Protocol).Base(err)
	}

	return &core.OutboundHandlerConfig{
		SenderSettings: serial.ToTypedMessage(senderSettings),
		Tag:            c.Tag,
		ProxySettings:  serial.ToTypedMessage(ts),
	}, nil
}

type StatsConfig struct{}

// Build implements Buildable.
func (c *StatsConfig) Build() (*stats.Config, error) {
	return &stats.Config{}, nil
}

type EnvConfig map[string]string

View on GitHub (pinned to 7d214f8b09)

When it happens

Trigger: Thrown at infra/conf/xray.go:366 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of XTLS/Xray-core@7d214f8b09 (2026-08-15). Data as JSON: /api/errors/9f87aed6fe8cf60c. Report an issue: GitHub.