я получаю следующее при попытке запустить gitk в Cloud9-язяМожно ли запустить gitk в cloud9
application-specific initialization failed: no display name and no $DISPLAY environment variable
Error in startup script: no display name and no $DISPLAY environment variable
while executing
"load /usr/lib/x86_64-linux-gnu/libtk8.6.so Tk"
("package ifneeded Tk 8.6.1" script)
invoked from within
"package require Tk"
(file "/usr/bin/gitk" line 10)