I am using realm-android for my project and using 5.10.0 as project is OLD.

Whenever data tried to insert in Realm , it got following error.

Found error inside the execution block of add data , io.realm.exceptions.RealmException: '' doesn't exist in current schema.
at io.realm.internal.b.a(ColumnIndices.java:112)
at io.realm.aq.e(RealmSchema.java:241)
at io.realm.ar.a(SchemaConnector.java:48)
at io.realm.internal.a.a.a(CachedFieldDescriptor.java:71)
at io.realm.internal.a.c.e(FieldDescriptor.java:304)
at io.realm.internal.a.c.a(FieldDescriptor.java:190)
at io.realm.RealmQuery.c(RealmQuery.java:316)
at io.realm.RealmQuery.a(RealmQuery.java:311)
at io.realm.RealmQuery.a(RealmQuery.java:296)

I have crossed checked and schema exists and was working fine earlier . It is showing schema name '' empty . I am not able to reproduce it . I have also cross verified for ProGuard and it seems fine. This particular data table was in sync mode. I have resolved this issue by clearing data but that data got lost. I am looking for reason so that in future this issues should not arise .

P.S. :: Proguard line
-keep public class * extends io.realm.RealmObject

Realm version(s): 5.10.0
Realm Sync feature enabled: Yes
Android Build Tools version: 27.0.3
Gradle version: 3.1.3

Which Android version and device(s): 8.1.0