我知道Angular2 Beta剛剛發布，但是我無法從其官方網站教程（https://angular.io/guide/quickstart）中復制步驟。也許有人遇到過類似的問題，并且知道該怎么做才能解決此問題？當我嘗試使用npm start命令啟動應用程序時，我得到如下輸出：0 info it worked if it ends with ok1 verbose cli [ 'node', '/usr/local/bin/npm', 'start' ]2 info using [email protected] info using [email protected] verbose run-script [ 'prestart', 'start', 'poststart' ]5 info prestart [email protected] info start [email protected] verbose unsafe-perm in lifecycle true8 info [email protected] Failed to exec start script9 verbose stack Error: [email protected] start: `concurrent "npm run tsc:w" "npm run lite" `9 verbose stack Exit status 1279 verbose stack     at EventEmitter.<anonymous> (/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.<anonymous> (/usr/local/lib/node_modules/npm/lib/utils/spawn.js:14:12)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 [email protected] verbose cwd /Users/tmrovsky/Documents/angular2/angular2-quickstart12 error Darwin 13.4.013 error argv "node" "/usr/local/bin/npm" "start"14 error node v0.12.215 error npm  v2.7.416 error code ELIFECYCLE17 error [email protected] start: `concurrent "npm run tsc:w" "npm run lite" `17 error Exit status 12718 error Failed at the [email protected] start script 'concurrent "npm run tsc:w" "npm run lite" '.18 error This is most likely a problem with the angular2-quickstart package,18 error not with npm itself.18 error Tell the author that this fails on your system:18 error     concurrent "npm run tsc:w" "npm run lite"18 error You can get their info via:18 error     npm owner ls angular2-quickstart18 error There is likely additional logging output above.我有：打字稿1.7.5版本節點0.12.2版本也許有人可以幫助解決問題:)？