我正在研究Angular2上的egghead.io教程,但他们仍在使用测试版。我正在查看Angular2 Quickstart的文档,这些文档指向了更新的候选版本,但我无法从egghead.io课程中获取webpack服务器以使用angular2软件包而且我我不确定挂断的地方。
在package.json
:
"devDependencies": {
"html-webpack-plugin": "^2.9.0",
"ts-loader": "^0.7.2",
"typescript": "^1.7.3",
"typings": "^0.6.8",
"webpack": "^1.12.14",
"webpack-dev-server": "^1.14.0"
},
"dependencies": {
"@angular/common": "^2.0.0-rc.1",
"@angular/compiler": "^2.0.0-rc.1",
"@angular/core": "^2.0.0-rc.1",
"@angular/http": "^2.0.0-rc.1",
"@angular/platform-browser": "^2.0.0-rc.1",
"@angular/platform-browser-dynamic": "^2.0.0-rc.1",
"@angular/router": "^2.0.0-rc.1",
"@angular/router-deprecated": "^2.0.0-rc.1",
"@angular/upgrade": "^2.0.0-rc.1",
"reflect-metadata": "^0.1.3",
"rxjs": "^5.0.0-beta.8",
"zone.js": "^0.6.12"
}
我没有更改课程中提供的webpack.config.js
。
当我npm start
(运行webpack服务器)时,我一直在
Error during instantiation of NgZone! (ApplicationRef -> ApplicationRef_ -> NgZone).
Cannot read property 'fork' of undefined
这表明我zone.fork
没有加载。我确实将vendor.ts
文件更新为:
import 'zone.js';
import 'reflect-metadata';
但我仍然得到与上面相同的错误。如果我包含一个带有console.log(zone.fork)
的简单脚本标记,它会记录一个函数,所以看起来像是加载了zone.js。我不确定为什么Angular2不会启动或者我还需要包含其他内容。
答案 0 :(得分:-2)
您正在导入
item
但是rc.1只与beta.6兼容