"Conversion failed: ; <--- java.lang.NumberFormatException: For input string: \"\""

Liferay.Service(
  '/user/add-user',
  {
    companyId: 20099,
    autoPassword: false,
    password1: 'test',
    password2: 'test',
    autoScreenName: false,
    screenName: 'test1',
    emailAddress: 'test1@gmail.com',
    facebookId: 0,
    openId: '',
    locale: ,
    firstName: 'test1',
    middleName: 'test1',
    lastName: 'test1',
    prefixId: 11,
    suffixId: ,
    male: false,
    birthdayMonth: 1,
    birthdayDay: 1,
    birthdayYear: 1992,
    jobTitle: 'software',
    groupIds: [34938],
    organizationIds: null,
    roleIds: [20109],
    userGroupIds: null,
    sendEmail: true
  },
  function(obj) {
    console.log(obj);
  }
);