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提前编译时出现SystemJS错误(没有NgZone的提供者)

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我成功地使用了Angular的提前编译 . 现在我已经添加了路由和延迟加载到我的应用程序,我不能让它工作了 .

我已经更新了我的代码以使用2.0(最新)版本,并且在我及时编译时运行正常 . 但在提前编译时,我收到以下错误:

(index):52错误:(SystemJS)XHR错误(404 Not Found)loading https://127.0.0.1:3443/traceur.js错误:XHR错误(404 Not Found)loading https://127.0.0.1: 3443 / traceur.js在XMLHttpRequest.wrapFn [as_onreadystatechange](https://127.0.0.1:3443/node_modules/zone.js/dist/zone.js:647:29)的ZoneDelegate.invokeTask(https://127.0) Zone.runTask中的.0.1:3443 / node_modules / zone.js / dist / zone.js:236:37)(https://127.0.0.1:3443/node_modules/zone.js/dist/zone.js:136: 47)在XMLHttpRequest.ZoneTask.invoke(https://127.0.0.1:3443/node_modules/zone.js/dist/zone.js:304:33)加载https://127.0.0.1:3443/traceur.js时出错从https://127.0.0.1:3443/加载https://127.0.0.1:3443/node_modules/@angular/core/src/linker/ng_module_factory.js为“@ angular / core / src / linker / ng_module_factory”时出错DIST /应用程序/ app.module.ngfactory.js

看看app.module.ngfactory.js,有一堆类似于以下的导入:

...
var import0 = require('@angular/core/src/linker/ng_module_factory');
var import1 = require('./app.module');
var import2 = require('@angular/common/src/common_module');
var import3 = require('@angular/core/src/application_module');
var import4 = require('@angular/platform-browser/src/browser');
var import5 = require('@angular/forms/src/directives');
var import6 = require('@angular/forms/src/form_providers');
...

我注意到如果我改变了

var import0 = require('@angular/core/src/linker/ng_module_factory');

import * as import0 from '@angular/core/src/linker/ng_module_factory';

SystemJS接受此行,并为下一行触发相同的错误,即

var import1 = require('./app.module');

所以我一直试图让SystemJS识别出这种CommonJS样式格式,但这只会导致其他错误,其中没有一个比上面的错误更清晰 .

Edit: 当我切换到在tsconfig中使用es2015模块并运行应用程序时,我得到(可怕的)traceur.js错误:

https://127.0.0.1:3443/traceur.js无法加载资源:服务器响应状态为404(未找到)2016-09-26 10:11:19.842 127.0.0.1/:52错误:( SystemJS)XHR错误(404 Not Found)loading https://127.0.0.1:3443/traceur.js错误:XHR错误(404 Not Found)在XMLHttpRequest.wrapFn加载https://127.0.0.1:3443/traceur.js [as_onreadystatechange](https://127.0.0.1:3443/node_modules/zone.js/dist/zone.js:647:29)在ZoneDelegate.invokeTask(https://127.0.0.1:3443/node_modules/zone . js / dist / zone.js:236:37)在ZoneHunTask(https://127.0.0.1:3443/node_modules/zone.js/dist/zone.js:136:47)的XMLHttpRequest.ZoneTask.invoke( https://127.0.0.1:3443/node_modules/zone.js/dist/zone.js:304:33)加载https://127.0.0.1:3443/traceur.js时出错加载https://127.0.0.1错误:3443 /距离/应用/ main.js

我以前遇到过这个并通过删除包含import语句的注释掉的代码来解决它 . 在这种情况下,我的代码中没有这样的行 .

这是我的systemjs.config.js:

(function(global) {
    System.defaultJSExtensions = true;
    System.defaultExtension = 'js';

    // map tells the System loader where to look for things
    // N.B. the dots at the start of the paths are very important!
    var map = {
        'app':                        './dist/app',
        '@angular':                   './node_modules/@angular',
        'rxjs':                       './node_modules/rxjs'
    };

    // packages tells the System loader how to load when no filename and/or no extension
    var packages = {
        'app':                        { main: 'main.js',  defaultExtension: 'js' },
        'rxjs':                       { defaultExtension: 'js' }
    };
    var ngPackageNames = [
        'common',
        'compiler',
        'compiler-cli',
        'core',
        'forms',
        'http',
        'platform-browser',
        'platform-browser-dynamic',
        'router',
        'tsc-wrapped',
        'upgrade'
    ];
    function packUmd(pkgName) {
        packages['@angular/'+pkgName] = { main: 'bundles/' + pkgName + '.umd.js', defaultExtension: 'js' };
    }
    var setPackageConfig =  packUmd;
    // Add package entries for angular packages
    ngPackageNames.forEach(setPackageConfig);
    console.log("SystemJS packages:", packages);
    var config = {
        map: map,
        packages: packages
    };

    System.config(config);

})(this);

Edit 2: 当我在systemjs.config.js中将'app'的格式设置为'cjs'时,即

'app': { main: 'main.js',  defaultExtension: 'js', format: 'cjs' },

当使用commonjs编译代码时,我不再在上面提到的app.module.ngfactory.js中收到错误 .

但是,当在浏览器中运行时,我得到以下错误(安装traceur后;没有traceur我只是得到上面的traceur错误):

(index):52错误:(SystemJS)没有NgZone的提供者!错误:没有NgZone的提供商!在NoProviderError.AbstractProviderError [NoProviderError.BaseError [作为构造函数](https://147.252.67.223:3443/node_modules/@angular/core/bundles/core.umd.js:1255:38)的NoProviderError.Error(native)处于NoProviderError.AbstractProviderError [新建NoProviderError(https://147.252.67.223:3443 / node_modules / angular / core / bundles / core.umd.js:1770:20)在ReflectiveInjector . throwOrNull(https://147.252.67.223:3443/node_modules/@angular/core/bundles/core.umd.js:3366:23)在ReflectiveInjector . getByKeyDefault(https://147.252.67.223:3443/node_modules/@angular/core/bundles/core.umd.js:3394:29)在ReflectiveInjector . getByKey(https://147.252.67.223:3443/node_modules /@angular/core/bundles/core.umd.js:3357:29)在ReflectiveInjector_.get(https://147.252.67.223:3443/node_modules/@angular/core/bundles/core.umd.js:3166: 25)在AppModuleInjector.createInternal(https://147.252.67.223:3443/dist/app/app.module.ngfactory.js:610:69)at AppModuleInjector.NgModuleInjector.create(https://147.252.67.223:3443/node_modules/@angular/core/src/linker/ng_module_factory.js!transpiled:96:32)评估https://147.252.67.223:3443/dist/ app / main.js加载错误https://147.252.67.223:3443/dist/app/main.js

我的tsconfig.json:

{
    "compilerOptions": {
        "target": "es5",
        "module": "commonjs",
        "moduleResolution": "node",
        "sourceMap": true,
        "experimentalDecorators": true,
        "emitDecoratorMetadata": true,
        "removeComments": true,
        "noImplicitAny": true,
        "suppressImplicitAnyIndexErrors": true,
        "rootDir":"./src",
        "outDir":"./dist"
    },
    "angularCompilerOptions": {
        "genDir": ".",
        "debug": true,
        "skipMetadataEmit": true
    }
}

Any help is much appreciated.

1 回答

  • 1

    由于 systemjs.config.js ,当我从Angular RC6切换到2.0.0时,我遇到了类似的问题 .

    我最终在最新的快速入门指南上重新做了整个 systemjs.config.js 基础:https://angular.io/docs/ts/latest/quickstart.html#!#add-config-files进行了一些修改 .

    我在 systemjs.config.js 中看到的一个问题是缺少对以下包的引用:

    • es6-shim(或core-js)

    • reflect-metadata

    • zone.js

    以下是我的 systemjs.config.js

    (function (global) {
        System.config({
            paths: {
                'npm:': '/node_modules/'
            },
            // map tells the System loader where to look for things
            map: {
                // our app is within the app folder
                app: '/app',
                // angular bundles
                '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
                '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
                '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
                '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
                '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
                '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
                '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
                '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
                // other libraries
                'es6-shim': 'npm:es6-shim',
                'reflect-metadata': 'npm:reflect-metadata',
                'rxjs': 'npm:rxjs',
                'zone.js': 'npm:zone.js'
            },
            // packages tells the System loader how to load when no filename and/or no extension
            packages: {
                'app': { main: 'main.js', defaultExtension: 'js' },
                'es6-shim': { main: 'es6-shim.min.js', defaultExtension: 'js' },
                'reflect-metadata': { main: 'Reflect.js', defaultExtension: 'js' },
                'rxjs': { main: 'bundles/Rx.min.js', defaultExtension: 'js' },
                'zone.js': { main: 'dist/zone.min.js', defaultExtension: 'js' }
            }
        });
    })(this);
    

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