RFCommunicator error

[split-face]

While attempting to run RF Explorer with this I encounter the following error. Any ideas as to what's causing it?

Error in RFCommunicator - IsConnectedPort()[Errno 16] could not open port /dev/cu.BLTH: [Errno 16] Resource busy: '/dev/cu.BLTH'
/dev/cu.SLAB_USBtoUART is a valid available port.
RF Explorer Valid Ports found: 1 - /dev/cu.SLAB_USBtoUART
Error in RFCommunicator - IsConnectedPort()Port must be configured before it can be used.

I'm using python 3.5 on Mac if that's relevant.

[dstant06]

I used ChatGPT to diagnose this exact issue, and it turned out my friend had forgotten to install the Silicon Labs CP210x Driver from here. https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers