我想运行 DMS 任务将数据从本地 Oracle DB 复制到 AWS 上的 Mysql。我已经获得了防火墙访问权限，并且能够从 AWS ec2 实例远程登录到 Oracle 数据库服务器。另外，我可以使用相同的用户名/密码登录数据库，连接字符串来自 sql developer 但是当我在 DMS 上测试我的端点时，它会失败并出现以下错误。
仅供参考，DMS 实例属于我已获得防火墙许可的同一 VPC。
Test Endpoint failed: Application-Status: 1020912, Application-Message: ORA-12545:
Connect failed because target host or object does not exist OCI connection failure.,
Application-Detailed-Message: ORA-12545: Connect failed because target host or object does not exist
OCI connection failure. ORA-12545: Connect failed because target host or object does not exist OCI connection
failure. Command get_owner_list failed when creating the stream component. requested object was not found
in the repository. Failed getting stream handle requested object was not found in the repository.
create_stream_handle failed requested object was not found in the repository.
Getting DB object ('A4NOXXXXXXXXXK2N2U') info from repository failed requested object was not found in
the repository. Command get_owner_list failed when creating the stream component. requested object was not
found in the repository. Failed getting stream handle requested object was not found in the repository.
create_stream_handle failed
我检查了网络和数据库端，似乎没有问题。请建议。