为Angular2下载了Quickstarter项目，没有做任何更改并运行npm start并出现以下错误：
localhost/:16 Error: Error: XHR error (404 Not Found) loading http://localhost:3000/node_modules/@angular/platform-browser-dynamic//bundles/platform-browser-dynamic.umd.js(…)(anonymous function) @
system.src.js:373 Assertion failed: loading or loaded(anonymous function) @ system.src.js:373
VM54:3 GET http://localhost:3000/browser-sync/socket.io/?EIO=3&transport=polling&t=LQpQtkZ net::ERR_CONNECTION_REFUSEDscheduleTask @ zone.js@0.6.12:101ZoneDelegate.scheduleTask @ zone.js@0.6.12:336Zone.scheduleMacroTask @ zone.js@0.6.12:273(anonymous function) @ zone.js@0.6.12:122send @ VM54:3Request.create @ browser-sync-client.2.14.0.js:1Request @ browser-sync-client.2.14.0.js:1XHR.request @ browser-sync-client.2.14.0.js:1XHR.doPoll @ browser-sync-client.2.14.0.js:1Polling.poll @ browser-sync-client.2.14.0.js:1Polling.doOpen @ browser-sync-client.2.14.0.js:1Transport.open @ browser-sync-client.2.14.0.js:1Socket.open @ browser-sync-client.2.14.0.js:1Socket @ browser-sync-client.2.14.0.js:1Socket @ browser-sync-client.2.14.0.js:1Manager.open.Manager.connect @ browser-sync-client.2.14.0.js:2(anonymous function) @ browser-sync-client.2.14.0.js:3ZoneDelegate.invokeTask @ zone.js@0.6.12:356Zone.runTask @ zone.js@0.6.12:256ZoneTask.invoke @ zone.js@0.6.12:423
我对上述错误感到非常沮丧，如果有人早点解决了，请帮忙。
答案 0 :(得分：0)