Developer Options’ USB debugging checkbox was turned on (remember, if it isn’t already showing – and it shouldn’t be – you can open up Developer Options as a Settings menu option by clicking 7 times on the Build Number item tucked away behind the About Phone/Tablet settings menu option), and the USB computer connection was set to MTP media device/files option.
However, the run process kept aborting with the following error message: Invalid “–device-id” value “XYZ” where XYZ was a label associated with the hooked up device.
As it turns out, the problem is actually one of authentication or rather authorization – essentially the device doesn’t trust the PC that it is currently plugged into. So to resolve, I turned off the “USB debugging” setting, clicked on the “Revoke USB debugging authorizations” menu option below that, and then turned USB debugging back on. The tablet asked me if it was okay to allow the computer connection, and after confirming on the device and then returning to Appcelerator Studio to compile and run, the Invalid –device-id issue was gone.
So, worth jotting down for future reference then.