我一直关注可在此链接找到的Angular 2路由和导航示例:https://plnkr.co/edit/I4ArEQTniO7MJtfzpBWl?p=info。
当我运行转换器时,我收到错误消息:“client / app / app.module.ts(5,41):error TS2307:找不到模块'@ angular / platform-browser / animations'。”
基于我的systemjs.config.js(如下所示),我希望模块'@ angular / platform-browser / animations'成为文件,“platform-browser-animations.umd.js”位于node_modules中/ @ angular / platform-browser / bundles,但它不存在。
//systemjs.config.js
(function (global) {
System.config({
paths: {
// paths serve as alias
'npm:': 'node_modules/'
},
// map tells the System loader where to look for things
map: {
// our app is within the app folder
app: 'app',
'@angular/animations': 'npm:@angular/animations/bundles/animations.umd.js',
'@angular/animations/browser': 'npm:@angular/animations/bundles/animations-browser.umd.js',
'@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/animations': 'npm:@angular/platform-browser/bundles/platform-browser-animations.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/router/upgrade': 'npm:@angular/router/bundles/router-upgrade.umd.js',
'@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
'@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
'@angular/upgrade/static': 'npm:@angular/upgrade/bundles/upgrade-static.umd.js',
// other libraries
'rxjs': 'npm:rxjs',
'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js'
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
//app: {
// main: './main.js',
// defaultExtension: 'js'
//},
client: {
main: './main.js',
defaultExtension: 'js'
},
rxjs: {
defaultExtension: 'js'
}
}
});
})(this);
使用npm我尝试安装缺少框架的安装,但收到一条未满足的依赖项错误消息:
+-- UNMET PEER DEPENDENCY @angular/common@2.4.8
+-- UNMET PEER DEPENDENCY @angular/core@2.4.8
`-- UNMET PEER DEPENDENCY @angular/platform-browser@2.4.10
然后我尝试安装依赖版本,但继续接收未满足的依赖性消息。
>npm install @angular/common@2.4.8 @angular/core@2.4.8 @angular/platform-browser@2.4.10 --save
我注意到有一个警告表明我应该安装Angular 4.
npm WARN @angular/animations@4.0.0 requires a peer of @angular/core@4.0.0 but no
ne was installed.
看起来我安装了动画4.0,它需要我不想安装的核心4.0。我是否需要卸载动画4.0并安装早期版本的动画?我的package.json文件在下面。
//package.json
{
"name": "angular-quickstart",
"version": "1.0.0",
"description": "QuickStart package.json from the documentation, supplemented with testing support",
"scripts": {
"build": "tsc -p client/",
"build:watch": "tsc -p client/ -w",
"build:e2e": "tsc -p e2e/",
"serve:e2e": "lite-server -c=bs-config.e2e.json",
"prestart": "npm run build",
"start": "npm run build:watch",
"pree2e": "npm run build:e2e",
"e2e": "concurrently \"npm run serve:e2e\" \"npm run protractor\" --kill-others --success first",
"preprotractor": "webdriver-manager update",
"protractor": "protractor protractor.config.js",
"pretest": "npm run build",
"test": "concurrently \"npm run build:watch\" \"karma start karma.conf.js\"",
"pretest:once": "npm run build",
"test:once": "karma start karma.conf.js --single-run",
"lint": "tslint ./client/**/*.ts -t verbose"
},
"keywords": [],
"author": "",
"license": "MIT",
"dependencies": {
"@angular/animations": "^4.0.0",
"@angular/common": "^2.4.8",
"@angular/compiler": "~2.4.0",
"@angular/core": "^2.4.8",
"@angular/forms": "~2.4.0",
"@angular/http": "~2.4.0",
"@angular/platform-browser": "^2.4.10",
"@angular/platform-browser-dynamic": "~2.4.0",
"@angular/router": "~3.4.0",
"angular-animate": "^1.6.3",
"angular-in-memory-web-api": "~0.2.4",
"body-parser": "^1.17.0",
"bootstrap": "^3.3.7",
"cookie-parser": "^1.4.3",
"core-js": "^2.4.1",
"ejs": "^2.5.6",
"express": "^4.15.0",
"express-session": "^1.15.1",
"jade": "^1.11.0",
"jquery": "^3.1.1",
"mongoose": "^4.8.5",
"morgan": "^1.8.1",
"passport": "^0.3.2",
"passport-local": "^1.0.0",
"rxjs": "5.0.1",
"stylus": "^0.54.5",
"systemjs": "0.19.40",
"toastr": "^2.1.2",
"zone.js": "^0.7.4"
},
"devDependencies": {
"concurrently": "^3.2.0",
"lite-server": "^2.2.2",
"typescript": "~2.0.10",
"canonical-path": "0.0.2",
"tslint": "^3.15.1",
"lodash": "^4.16.4",
"jasmine-core": "~2.4.1",
"karma": "^1.3.0",
"karma-chrome-launcher": "^2.0.0",
"karma-cli": "^1.0.1",
"karma-jasmine": "^1.0.2",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~4.0.14",
"rimraf": "^2.5.4",
"@types/node": "^6.0.46",
"@types/jasmine": "2.5.36"
},
"repository": {}
}
看起来问题可能与我的动画版本有关?如果您同意,如何卸载现有版本以及我应该安装哪个版本与我拥有的@ angular / core版本兼容,2.4.8。如果这不是问题,我该如何安装丢失的文件,@ angular / platform-browser / bundles / platform-browser-animations.umd.js?
答案 0 :(得分:31)
经过几个小时的研究,我找不到与我的@ angular / core版本兼容的@ angular / animations版本,其范围为2.4.0-2.4.8。我读了这篇文章的答案How to get list of versions for compatible Angular 2 modules?。这篇帖子表明除路由器之外的所有角度2的模块都是相同的版本所以我将@ angular / animations 2.4.8插入我的package.json并将所有版本更改为2.4.8,包括动画条目,因为我想确定我没有错过什么。然后我运行了npm install,这在动画版本上失败了。
我终于找到了这个帖子;关于更新到Angular 4.0的http://angularjs.blogspot.com/。该帖子还特别提到了我一直缺少的动画模块,但仅在升级时可用。我按照Windows的简单更新说明,我的应用程序现在运行正常。我的应用程序非常类似于指南中的plunker示例。根据帖子,如果您运行Angular 2.x.x,那么这应该向后兼容大多数应用程序。以下是升级说明。
更新到4.0.0
更新到4就像将Angular依赖项更新到最新版本一样简单,并仔细检查是否需要动画。这适用于大多数用例。
在Linux / Mac上:
npm install @ angular / {common,compiler,compiler-cli,core,forms,http,platform-browser,platform-browser-dynamic,platform-server,router,animations} @latest typescript @ latest --save < / p>
在Windows上:
npm install @ angular / common @ latest @ angular / compiler @ latest @ angular / compiler-cli @ latest @ angular / core @ latest @ angular / forms @ latest @ angular / http @ latest @ angular / platform-browser @最新@ angular / platform-browser-dynamic @ latest @ angular / platform-server @ latest @ angular / router @ latest @ angular / animations @ latest typescript @ latest --save
答案 1 :(得分:2)
尝试以下步骤
步骤-1
$ rm -rf node_modules
$ npm缓存清除
步骤-2
$ npm install @ angular / animations @ latest --save
$ npm install
它为我工作