角2 http://localhost:3002/traceur 404 (未找到)

Question

我有一个SPA，是在@ar角RC5上的，我正试图升级到正式发行版。在此之前，一切似乎都在发展中运转良好。在chrome调试控制台中没有错误。

现在，我已将package.json更改为：

 "dependencies": {
    "@angular/common": "~2.0.1",
    "@angular/compiler": "~2.0.1",
    "@angular/core": "~2.0.1",
    "@angular/forms": "~2.0.1",
    "@angular/http": "~2.0.1",
    "@angular/platform-browser": "~2.0.1",
    "@angular/platform-browser-dynamic": "~2.0.1",
    "@angular/router": "~3.0.1",
    "es6-shim": "^0.35.0",
    "lodash": "^4.14.1",
    "reflect-metadata": "^0.1.3",
    "rxjs": "5.0.0-beta.6",
    "systemjs": "0.19.27",
    "underscore": "^1.8.3",
    "zone.js": "^0.6.12"
  },

我还清理了一堆ROUTER_PROVIDER引用，删除了所有多行注释。然而，现在当我运行我的应用程序时：

zone.js:1274 GET http://localhost:3002/traceur 404 (Not Found)scheduleTask @ zone.js:1274ZoneDelegate.scheduleTask @ zone.js:216Zone.scheduleMacroTask @ zone.js:153(anonymous function) @ zone.js:1304send @ VM1437:3fetchTextFromURL @ system.src.js:1156(anonymous function) @ system.src.js:1739ZoneAwarePromise @ zone.js:478(anonymous function) @ system.src.js:1738(anonymous function) @ system.src.js:2764(anonymous function) @ system.src.js:3338(anonymous function) @ system.src.js:3605(anonymous function) @ system.src.js:3990(anonymous function) @ system.src.js:4453(anonymous function) @ system.src.js:4705(anonymous function) @ system.src.js:408ZoneDelegate.invoke @ zone.js:203Zone.run @ zone.js:96(anonymous function) @ zone.js:462ZoneDelegate.invokeTask @ zone.js:236Zone.runTask @ zone.js:136drainMicroTaskQueue @ zone.js:368ZoneTask.invoke @ zone.js:308
zone.js:355 Unhandled Promise rejection: Error: XHR error (404 Not Found) loading http://localhost:3002/traceur
        at XMLHttpRequest.wrapFn [as _onreadystatechange] (http://localhost:3002/vendor/zone.js/dist/zone.js:647:29)
        at ZoneDelegate.invokeTask (http://localhost:3002/vendor/zone.js/dist/zone.js:236:37)
        at Zone.runTask 
(http://localhost:3002/vendor/zone.js/dist/zone.js:136:47)
        at XMLHttpRequest.ZoneTask.invoke (http://localhost:3002/vendor/zone.js/dist/zone.js:304:33)
    Error loading http://localhost:3002/traceur
    Error loading http://localhost:3002/vendor/@angular/platform-browser-dynamic/index.js as "@angular/platform-browser-dynamic" from http://localhost:3002/app/main.js ; Zone: <root> ; Task: Promise.then ; Value: Error: Error: XHR error (404 Not Found) loading http://localhost:3002/traceur(…) nullconsoleError @ zone.js:355_loop_1 @ zone.js:382drainMicroTaskQueue @ zone.js:386ZoneTask.invoke @ zone.js:308
zone.js:357 Error: Uncaught (in promise): Error: Error: XHR error (404 Not Found) loading http://localhost:3002/traceur(…)consoleError @ zone.js:357_loop_1 @ zone.js:382drainMicroTaskQueue @ zone.js:386ZoneTask.invoke @ zone.js:308
13system.src.js:373 Assertion failed: loading or loaded(anonymous function) @ system.src.js:373ZoneDelegate.invoke @ zone.js:203Zone.run @ zone.js:96(anonymous function) @ zone.js:462ZoneDelegate.invokeTask @ zone.js:236Zone.runTask @ zone.js:136drainMicroTaskQueue @ zone.js:368ZoneTask.invoke @ zone.js:308

我看过一些有类似问题的帖子，但我不知道是什么原因造成的？

Answer 1

traceur 404是一个指示，表明角形无法找到/加载所需的东西或包。通过你的帖子，我只能给你以下的建议。

1) package.json不正确。请和这里的package.json比较一下。

2) zone.js对Angular2.0.1要求更高的版本。

3)最新版本不再需要 es6-shim": "^0.35.0" shim。从index.html中删除引用。

除此之外，还有很多其他的事情会引起问题。但目前还很难说。