code: function UnknownEnvNameError (e) {
  
      e = e || {};
  
      var environmentName = e.environmentName || '';
  
      this.message = 'No config for environment name "' + environmentName + '"';
      this.code = ERR_NO_SUCH_ENVIRONMENT;
      this.environmentName = environmentName;
  
  }
docs: /* UnknownEnvNameError