title: Multiple realm db's in one application
body: <p>I want to add a second Realm db to my application. The first one is being created by unzipping realm file which is already provided in my application. I have set the configuration pointing to this. </p>
  
  <p>How can I add second Realm db? The two db's are independent of each other. I have created SecondRealm class extending realm object.</p>
  
  <p>Have followed the below:
  <a href="https://stackoverflow.com/questions/33631605/realm-use-one-or-multiple-realms-in-an-app-and-one-or-multiple-schemas">Realm: Use one or multiple realms in an app (and one or multiple schemas)</a></p>
  
  <p>But I am getting: </p>
  
  <pre><code>io.realm.exceptions.RealmMigrationNeededException: Migration is required due to the following errors:
  -Class 'SecondRealm' has been added
   at io.realm.internal.OsSharedRealm.nativeGetSharedRealm(Native Method)
          at io.realm.internal.OsSharedRealm.&lt;init&gt;(OsSharedRealm.java:171)
          at io.realm.internal.OsSharedRealm.getInstance(OsSharedRealm.java:241)
          at io.realm.BaseRealm.&lt;init&gt;(BaseRealm.java:136)
          at io.realm.BaseRealm.&lt;init&gt;(BaseRealm.java:105)
          at io.realm.Realm.&lt;init&gt;(Realm.java:164)
          at io.realm.Realm.createInstance(Realm.java:435)
          at io.realm.RealmCache.doCreateRealmOrGetFromCache(RealmCache.java:342)
          at io.realm.RealmCache.createRealmOrGetFromCache(RealmCache.java:282)
          at io.realm.Realm.getInstance(Realm.java:364)
  </code></pre>