Not enough information to infer type variable E

Question

this error appear in kotlin

Not enough information to infer type variable E Classifier 'Person' does not have a companion object, and thus must be initialized here

    Realm.init(this)
    val config=RealmConfiguration.Builder()
        .name("person.realm").build()
    val realm=Realm.getInstance(config)
    realm.beginTransaction()

    val person=realm.createObject(Person,1)
    person.name="محمود حسينى"
    person.age=33
    person.job="مهندس"