It's been a while since I've worked with microcontrollers, so will need some assistance with this. I have looked through prior posts related to this issue, but I still can't find success, which means I have a new problem or I am doing something wrong (not sure which one).
I am using a Teensy 3.2 with Arduino version 1.8.7. I have the Teensyduino downloaded. I am able to verify and compile programs, but cannot upload due to lack of ports. The error message I get is "please select a port prior to upload". However, my port option is grayed out.