XTLS/Xray-core · error

failed to parse toml config

Error message

failed to parse toml config

What it means

Error "failed to parse toml config" thrown in XTLS/Xray-core.

Source

Thrown at infra/conf/serial/loader.go:135

	}

	jsonFile, err := json.Marshal(&configMap)
	if err != nil {
		return nil, errors.New("failed to convert map to json").Base(err)
	}

	return DecodeJSONConfig(bytes.NewReader(jsonFile))
}

func LoadTOMLConfig(reader io.Reader) (*core.Config, error) {
	tomlConfig, err := DecodeTOMLConfig(reader)
	if err != nil {
		return nil, err
	}

	pbConfig, err := tomlConfig.Build()
	if err != nil {
		return nil, errors.New("failed to parse toml config").Base(err)
	}

	return pbConfig, nil
}

// DecodeYAMLConfig reads from reader and decode the config into *conf.Config
// using github.com/ghodss/yaml to convert yaml to json.
func DecodeYAMLConfig(reader io.Reader) (*conf.Config, error) {
	yamlFile, err := io.ReadAll(reader)
	if err != nil {
		return nil, errors.New("failed to read config file").Base(err)
	}

	jsonFile, err := yaml.YAMLToJSON(yamlFile)
	if err != nil {
		return nil, errors.New("failed to convert yaml to json").Base(err)
	}

View on GitHub (pinned to 7d214f8b09)

When it happens

Trigger: Thrown at infra/conf/serial/loader.go:135 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Parsing and encoding errors: unexpected token, malformed input — why parsers reject input and how to find the real culprit.

AI-assisted analysis of XTLS/Xray-core@7d214f8b09 (2026-08-15). Data as JSON: /api/errors/4081374b553e32be. Report an issue: GitHub.