Realm primary key issue

[priyanshi bhardwaj]

Hi, I have created a realm structure. But I am getting this error :

Fatal Exception: java.lang.IllegalArgumentException: A RealmObject with no @PrimaryKey cannot be updated: class com.xxxxxxxxx.Container
       at io.realm.Realm.checkHasPrimaryKey(Realm.java:1729)
       at io.realm.Realm.copyToRealmOrUpdate(Realm.java:1090)
       at com.xxxxxxxxx.dao_v2.ContainerDao.lambda$createOrUpdateAll$2(ContainerDao.java:90)
       at com.xxxxxxxxx.-$$Lambda$ContainerDao$DmjoncgAol-86tLcwodU5QjOPfo.execute(:2)
       at io.realm.Realm.executeTransaction(Realm.java:1493)
       at com.xxxxxxxxx.ContainerDao.createOrUpdateAll(ContainerDao.java:80)
       at com.xxxxxxxxx.ContainerDao.createOrUpdateFromList(ContainerDao.java:74)
       at com.xxxxxxxxx.main.MainActivityVM$3.onResponse(MainActivityVM.java:518)
       

and realm structure is having a primary key

public class Container extends RealmObject {

    @PrimaryKey
    private Long id;
    private String name;

    private String status ;

    private Content content;



// rest are getters and setters 
    

Did anybody encounter the same problem?