Oracle Message ORA-02047 - cannot join the distributed transaction in progress

ERRORcannot join the distributed transaction in progress
CAUSEEither a transaction is in progress against a remote database that does not fully support two phase commit, and an update is attempted on another database, or updates are pending and and an attempt is made to update a different database that does not fully support two phase commit.
ACTIONcomplete the current transaction and then resubmit the update request.