Can not install FJ

[ianjiang]

System info:

• node :

➜  angularjs node -v
v5.1.0

• Mac: 10.11.1 (15B42)

Install error

[jpegtran-bin@0.2.8] scripts.postinstall success, use 6s
[phantomjs@1.9.20] scripts.install: "node install.js" at /usr/local/lib/node_modules/.fj_npminstall/phantomjs/1.9.20/phantomjs
PhantomJS not found on PATH
Phantom installation failed [TypeError: Path must be a string. Received undefined] TypeError: Path must be a string. Received undefined
    at assertPath (path.js:8:11)
    at Object.posix.join (path.js:479:5)
    at findSuitableTempDirectory (/usr/local/lib/node_modules/.fj_npminstall/phantomjs/1.9.20/phantomjs/install.js:127:30)
    at /usr/local/lib/node_modules/.fj_npminstall/phantomjs/1.9.20/phantomjs/install.js:476:19
    at nextTickCallback (/usr/local/lib/node_modules/.fj_npminstall/kew/0.7.0/kew/kew.js:47:28)
    at doNTCallback0 (node.js:430:9)
    at process._tickCallback (node.js:359:13)
Error: post install error, please remove node_modules before retry!
Run "sh -c node install.js" error, exit code 1
Error: post install error, please remove node_modules before retry!
Run "sh -c node install.js" error, exit code 1
    at ChildProcess.<anonymous> (/usr/local/lib/node_modules/cnpm/node_modules/runscript/index.js:67:21)
    at emitTwo (events.js:87:13)
    at ChildProcess.emit (events.js:172:7)
    at maybeClose (internal/child_process.js:818:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)