connecting to an oracle sql database from sql developer on the same computer. When the computer is a domain computer
The last number of the log entry is the return code of the operation. On a successful connection, it is 0. In your case, it is 12505.

12505, 00000, "TNS:listener does not currently know of SID given in connect descriptor"
// *Cause:  The listener received a request to establish a connection to a
// database or other service. The connect descriptor received by the listener
// specified a SID for an instance (usually a database instance) that either
// has not yet dynamically registered with the listener or has not been
// statically configured for the listener. This may be a temporary condition
// such as after the listener has started, but before the database instance
// has registered with the listener.
// *Action:
//  - Wait a moment and try to connect a second time.
//  - Check which instances are currently known by the listener by executing:
//    lsnrctl services &lt;listener name&gt;
//  - Check that the SID parameter in the connect descriptor specifies
//    an instance known by the listener.
//  - Check for an event in the listener.log file.


This simply means, you provided an incorrect SID.

xe is the default SID in SQL Developer.

Check the correct SID from the output of lsnrctl status, and use that for connecting.

Or even better, let's just finally forget the SID, and use SERVICE_NAME.

Another possibility is that your database instance was not started, or you do not even have a database created yet.