Issue when installing

[bonbonpiment]

Hello , i encountered an issue when trying to npm install : npm ERR! [email protected] prepublish: echo $(pwd) > /tmp/.pwd; ./node_modules/coffee-script/bin/coffee -o compiled/ -c lib/; npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the [email protected] prepublish script. npm ERR! This is most likely a problem with the express.io package, npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! echo $(pwd) > /tmp/.pwd; ./node_modules/coffee-script/bin/coffee -o compiled/ -c lib/;

Any idea ? thks