I have the same issue on amazon Ubuntu 12.10 instance but no problem with my Desktop ubuntu12.10 my desktop 12.10 kernel is currently Linux telman 3.5.0-25-generic #39-Ubuntu SMP Mon Feb 25 18:26:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux logs from amazaon ubnutu12.12 instance is below I try to use nodejs with express framework ubuntu@domU-12-31-39-0A-9D-6B:~$ express test create : test create : test/package.json create : test/app.js create : test/public create : test/public/javascripts create : test/public/images create : test/public/stylesheets create : test/public/stylesheets/style.css create : test/routes create : test/routes/index.js create : test/routes/user.js create : test/views create : test/views/layout.jade create : test/views/index.jade install dependencies: $ cd test && npm install run the app: $ node app ubuntu@domU-12-31-39-0A-9D-6B:~$ ubuntu@domU-12-31-39-0A-9D-6B:~$ cd test && npm install npm http GET https://registry.npmjs.org/express/3.2.0 npm http GET https://registry.npmjs.org/jade npm http 304 https://registry.npmjs.org/jade npm http 304 https://registry.npmjs.org/express/3.2.0 npm http GET https://registry.npmjs.org/cookie/0.0.5 npm http GET https://registry.npmjs.org/buffer-crc32 npm http GET https://registry.npmjs.org/mkdirp npm http GET https://registry.npmjs.org/fresh/0.1.0 npm http GET https://registry.npmjs.org/methods/0.0.1 npm http GET https://registry.npmjs.org/send/0.1.0 npm http GET https://registry.npmjs.org/cookie-signature/1.0.1 npm http GET https://registry.npmjs.org/debug npm http GET https://registry.npmjs.org/connect/2.7.6 npm http GET https://registry.npmjs.org/commander/0.6.1 npm http GET https://registry.npmjs.org/range-parser/0.0.4 npm http GET https://registry.npmjs.org/mkdirp npm http GET https://registry.npmjs.org/commander npm http GET https://registry.npmjs.org/transformers npm http GET https://registry.npmjs.org/monocle npm http GET https://registry.npmjs.org/character-parser npm http 304 https://registry.npmjs.org/buffer-crc32 npm http 304 https://registry.npmjs.org/fresh/0.1.0 npm http 304 https://registry.npmjs.org/cookie/0.0.5 npm http 304 https://registry.npmjs.org/mkdirp npm http 304 https://registry.npmjs.org/methods/0.0.1 npm http 304 https://registry.npmjs.org/send/0.1.0 npm http 304 https://registry.npmjs.org/debug npm http 304 https://registry.npmjs.org/cookie-signature/1.0.1 npm http 304 https://registry.npmjs.org/connect/2.7.6 npm http 304 https://registry.npmjs.org/commander/0.6.1 npm http 304 https://registry.npmjs.org/mkdirp npm http 304 https://registry.npmjs.org/range-parser/0.0.4 npm http 304 https://registry.npmjs.org/commander npm http 304 https://registry.npmjs.org/monocle npm http 304 https://registry.npmjs.org/transformers npm http GET https://registry.npmjs.org/mime/1.2.6 npm http GET https://registry.npmjs.org/qs/0.5.1 npm http GET https://registry.npmjs.org/formidable/1.0.11 npm http GET https://registry.npmjs.org/buffer-crc32/0.1.1 npm http GET https://registry.npmjs.org/bytes/0.2.0 npm http GET https://registry.npmjs.org/pause/0.0.1 npm http 304 https://registry.npmjs.org/character-parser npm http GET https://registry.npmjs.org/keypress npm http GET https://registry.npmjs.org/readdirp npm http GET https://registry.npmjs.org/promise npm http GET https://registry.npmjs.org/css npm http GET https://registry.npmjs.org/uglify-js npm http 304 https://registry.npmjs.org/mime/1.2.6 npm http 304 https://registry.npmjs.org/bytes/0.2.0 npm http 304 https://registry.npmjs.org/buffer-crc32/0.1.1 npm http 304 https://registry.npmjs.org/formidable/1.0.11 npm http 304 https://registry.npmjs.org/qs/0.5.1 npm http 304 https://registry.npmjs.org/pause/0.0.1 npm http 304 https://registry.npmjs.org/keypress npm http 304 https://registry.npmjs.org/readdirp npm http 304 https://registry.npmjs.org/promise npm http 304 https://registry.npmjs.org/css npm http GET https://registry.npmjs.org/minimatch npm http 304 https://registry.npmjs.org/uglify-js npm http GET https://registry.npmjs.org/is-promise npm http GET https://registry.npmjs.org/css-parse/1.0.4 npm http GET https://registry.npmjs.org/css-stringify/1.0.5 npm http GET https://registry.npmjs.org/optimist npm http GET https://registry.npmjs.org/source-map npm http 304 https://registry.npmjs.org/minimatch npm http GET https://registry.npmjs.org/minimatch/-/minimatch-0.2.12.tgz npm http 304 https://registry.npmjs.org/is-promise npm http 304 https://registry.npmjs.org/css-parse/1.0.4 npm http 304 https://registry.npmjs.org/css-stringify/1.0.5 npm http 304 https://registry.npmjs.org/optimist npm http GET https://registry.npmjs.org/optimist/-/optimist-0.3.7.tgz npm http 304 https://registry.npmjs.org/source-map npm ERR! error installing uglify-js@2.2.5 npm ERR! error installing transformers@2.0.1 npm ERR! error installing jade@0.30.0 npm ERR! Error: No compatible version found: source-map@'>=0.1.7- <0.2.0-' npm ERR! Valid install targets: npm ERR! ["0.0.0","0.1.0","0.1.1","0.1.2","0.1.3"] npm ERR! at installTargetsError (/usr/share/npm/lib/cache.js:488:10) npm ERR! at next_ (/usr/share/npm/lib/cache.js:438:17) npm ERR! at next (/usr/share/npm/lib/cache.js:415:44) npm ERR! at /usr/share/npm/lib/cache.js:408:5 npm ERR! at saved (/usr/share/npm/lib/utils/npm-registry-client/get.js:147:7) npm ERR! at Object.oncomplete (/usr/lib/nodejs/graceful-fs.js:230:7) npm ERR! You may report this log at: npm ERR! npm ERR! or use npm ERR! reportbug --attach /home/ubuntu/test/npm-debug.log npm npm ERR! npm ERR! System Linux 3.5.0-21-generic npm ERR! command "/usr/bin/nodejs" "/usr/bin/npm" "install" npm ERR! cwd /home/ubuntu/test npm ERR! node -v v0.6.19 npm ERR! npm -v 1.1.4 npm ERR! message No compatible version found: source-map@'>=0.1.7- <0.2.0-' npm ERR! message Valid install targets: npm ERR! message ["0.0.0","0.1.0","0.1.1","0.1.2","0.1.3"] npm ERR! npm ERR! Additional logging details can be found in: npm ERR! /home/ubuntu/test/npm-debug.log npm not ok ubuntu@domU-12-31-39-0A-9D-6B:~/test$