A class has been changed incompatibly and no mutation has been configured to handle the change or a new class version number has not been assigned.
In a replicated environment, this exception is also thrown when upgrading an application (persistent classes have been changed) and an upgraded node is elected Master before all of the Replica nodes have been upgraded. See Upgrading a Replication Group for more information.
@see com.sleepycat.persist.EntityStore#EntityStore EntityStore.EntityStore
@see com.sleepycat.persist.model.Entity#version
@see com.sleepycat.persist.model.Persistent#version
@see com.sleepycat.persist.evolve Class Evolution
@author Mark Hayes