Hi Thomas,
I think the message is caused by the Remote Debug Server. The specified port is probably used by another (Omnis) process.
You can enable the RemoteDebug menu in the Omnis Server by executing the following (e.g. in the $construct of the Startup_Task in your library):
Do $root.$prefs.$showremotedebugmenu.$assign(kTrue)
If you then open the menu item in the Omnis Server, you can set a different port in the configuration window. After restarting Omnis, the message should no longer appear in the trace log.
Alternatively, you can specify the debugPort in the remote_debug_server_config.json file in your Omnis Server installation (C:\Users\[USER]\AppData\Local\Omnis Software\OS 10.22 31896 SVR\clientserver\server\remotedebug\remote_debug_server_config.json).
When Omnis Server is running as a Windows service, the remote_debug_server_config.json file is in the system profile’s AppData area. See Technical Note: https://www.omnis.net/developers/resources/technotes/tnwi0002.jsp
Götz