Getting "PTY is not supported." message and terminal not working (solved)

[brians-code]

I kept getting the message "PTY is not supported." and the terminal wouldn't load inside c9. I noticed pty.js was installed to .c9/tmux-1-0-0/node_modules/pty.js, but the c9sdk was looking for it in .c9/node_modules/pty.js. (I am working from memory so the tmux directory might have had a different version number.) I installed tmux system-wide from the Ubuntu packages:
sudo apt install tmux
Then I deleted .c9 and ran install_sdk.sh again. This time it didn't create the tmux directory inside .c9, and it put pty.js in the directory .c9/node_modules as expected. No more error message, and the terminal started working inside c9.

[isynergy-development]

Same thing happening to me on Debian Jessie, installing tmux from package manager fixes the path issue during install.

[lo-co]

I am getting this periodically - can't really tell what combination of calls is creating it. Installing tmux from the package manager did not fix this for me.

[nightwing]

this is fixed now