What to do when the terminal displays "Sorry, could not find a PTY"? (Mac OSx)
I know this is old but I found the same problem today with my Raspberry PI and a PI UART card attached. I found that this error occurred when I opened up a screen session but didn't close it completely. I was able to fix by going to Activity Monitor and terminating any "screen" processes.
Yannick Maris
Updated on June 03, 2022Comments
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Yannick Maris almost 2 years
I'm connecting an android device to an FTDI, which is connected to my Mac. On my android device I'm using FTDI AOA HyperTerm. I can send chars without any problem to my mac using this program: https://www.decisivetactics.com/products/serial/. As you can see I can only use it for 7 days, so I want to use my Terminal instead. When I run this command:
screen /dev/tty.usbserial 9600
I get a blank screen with two messages, the second one being "Sorry, could not find a PTY".
What should I do to fix this?
EDIT: when I closed the Serial program, it worked on my Terminal. However, when I restart my Terminal it gives the same message. I open Serial, select my USB device, close serial and use my Terminal. Why is this?
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Elise van Looij about 6 yearsCTRL-A followed by CTRL-\ will close all open screen 'windows'. But if a 'screen' window has been detached, 'Activity Monitor' is one way to close it.