issues with "famous develop"

Start at bin/dev.js:58, where the stack trace shows the server listen call failing, and reproduce famous develop with the reported Node.js and npm versions. Determine the intended behavior for this EADDRINUSE failure from the CLI entry point. Done means the command has an expected, user-facing outcome when the reported error occurs.

bash-3.2# famous develop

engine-seed@1.0.0 dev /Users/ahnbernard/famous
node ./bin/dev.js

events.js:85
throw er; // Unhandled 'error' event
^
Error: listen EADDRINUSE
at exports._errnoException (util.js:746:11)
at Server._listen2 (net.js:1156:14)
at listen (net.js:1182:10)
at Server.listen (net.js:1267:5)
at Object. (/Users/ahnbernard/famous/bin/dev.js:58:8)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Function.Module.runMain (module.js:501:10)

npm ERR! Darwin 13.4.0
npm ERR! argv "node" "/usr/local/bin/npm" "run" "dev"
npm ERR! node v0.12.7
npm ERR! npm v2.11.3
npm ERR! code ELIFECYCLE
npm ERR! engine-seed@1.0.0 dev: node ./bin/dev.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the engine-seed@1.0.0 dev script 'node ./bin/dev.js'.
npm ERR! This is most likely a problem with the engine-seed package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node ./bin/dev.js
npm ERR! You can get their info via:
npm ERR! npm owner ls engine-seed
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! /Users/ahnbernard/famous/npm-debug.log
child process exited with code 1
bash-3.2#

//////////// npm-debug.log/////////

0 info it worked if it ends with ok
1 verbose cli [ 'node', '/usr/local/bin/npm', 'run', 'dev' ]
2 info using npm@2.11.3
3 info using node@v0.12.7
4 verbose run-script [ 'predev', 'dev', 'postdev' ]
5 info predev engine-seed@1.0.0
6 info dev engine-seed@1.0.0
7 verbose unsafe-perm in lifecycle true
8 info engine-seed@1.0.0 Failed to exec dev script
9 verbose stack Error: engine-seed@1.0.0 dev: node ./bin/dev.js
9 verbose stack Exit status 1
9 verbose stack at EventEmitter. (/usr/local/lib/node_modules/npm/lib/utils/lifecycle.js:213:16)
9 verbose stack at EventEmitter.emit (events.js:110:17)
9 verbose stack at ChildProcess. (/usr/local/lib/node_modules/npm/lib/utils/spawn.js:24:14)
9 verbose stack at ChildProcess.emit (events.js:110:17)
9 verbose stack at maybeClose (child_process.js:1015:16)
9 verbose stack at Process.ChildProcess._handle.onexit (child_process.js:1087:5)
10 verbose pkgid engine-seed@1.0.0
11 verbose cwd /Users/ahnbernard/famous
12 error Darwin 13.4.0
13 error argv "node" "/usr/local/bin/npm" "run" "dev"
14 error node v0.12.7
15 error npm v2.11.3
16 error code ELIFECYCLE
17 error engine-seed@1.0.0 dev: node ./bin/dev.js
17 error Exit status 1
18 error Failed at the engine-seed@1.0.0 dev script 'node ./bin/dev.js'.
18 error This is most likely a problem with the engine-seed package,
18 error not with npm itself.
18 error Tell the author that this fails on your system:
18 error node ./bin/dev.js
18 error You can get their info via:
18 error npm owner ls engine-seed
18 error There is likely additional logging output above.
19 verbose exit [ 1, true ]