The part about "Serial port cu.usbserial-A9KJ71D9 is in use¡± is what matters here.
It seems unlikely that some other program is using that connection (unless an older run of JMRI is still around somehow?), but that¡¯s what the message says. But ¡°in use¡± can be more generically ¡°unavailable¡±. First think to try is restarting the computer. Next, try setting up a new (completely new) profile again.
Bob
On Jan 5, 2019, at 6:10 PM, David S <docdata3d@...> wrote:
Sort of going backwards now....
The name of my CU. connection is, as I said earlier, 'cu.usbserial-A9KJ71D9'. The 'A9KJ71D9' is thr serial number of that device.
I upgraded my JMRI to 4.14, replacing the earlier installation completely. I tried to set up a connection but I get this error message...
Unable to create connection 'MRC' (M)
Serial port cu.usbserial-A9KJ71D9 is in use.
System connection MRC provides a null manager for interface jmri.ThrottleManager.
Unable to run startup features becuase of earlier errors.
Please check the logs for more details.
--
Bob Jacobsen
rgj1927@...
Bob Jacobsen