After installing gnuplot

[SAssadi@…]

xxxxxxxxx5:gnuplot MACAir$ sudo port install xemacs sudo: cannot get working directory shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory error getting working directory name: no such file or directory

while executing

"pwd"

invoked from within

"set current_portdir [pwd]"

(file "/opt/local/bin/port" line 4703)

[macsforever2000@…]

Open a new Terminal window and try again. Basically you were in a directory in Terminal that no longer exists.