Update(EDIT):

我做到了

npm i -g npm-check-updates
npm-check-updates -u
npm install

现在它显示了这些错误

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules\chokidar\node_modules\fsevents):

npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

npm WARN @angular/animations@5.1.2 requires a peer of @angular/core@5.1.2 but none was installed.

npm WARN @angular/compiler-cli@5.1.1 requires a peer of typescript@>=2.4.2 <2.6 but none was installed.

npm WARN tsickle@0.25.5 requires a peer of typescript@>=2.4.2 <2.6 but none was installed.

并且浏览器显示：

ENOENT：没有这样的文件或目录，scandir'E：\ xuf \ Angular \ Practice \ todo \ node_modules \ webpack \ hot'@（webpack）-dev-server / client？http：//0.0.0.0：0 @ multi webpack-dev-server / client？http：//0.0.0.0：0 ./src/main.ts

我用这个命令安装了角度动画

npm install @ angular / animations --save

出现此错误，动画也不起作用 . 什么地方出了错？

@ angular / animations @ 5.1.2需要@ angular / core @ 5.1.2的对等，但没有安装

ng -v的结果

Angular CLI: 1.5.5
Node: 6.11.4
OS: win32 x64
Angular: 5.1.1
... common, compiler, compiler-cli, core, forms, http
... language-service, platform-browser, platform-browser-dynamic
... router

@angular/animations: 5.1.2
@angular/cli: 1.5.5
@angular-devkit/build-optimizer: 0.0.36
@angular-devkit/core: 0.0.22
@angular-devkit/schematics: 0.0.42
@ngtools/json-schema: 1.1.0
@ngtools/webpack: 1.8.5
@schematics/angular: 0.1.11
@schematics/schematics: 0.0.11
typescript: 2.4.2
webpack: 3.8.1

package.json:

{
  "name": "todo",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^5.1.2",
    "@angular/common": "^5.0.0",
    "@angular/compiler": "^5.0.0",
    "@angular/core": "^5.0.0",
    "@angular/forms": "^5.0.0",
    "@angular/http": "^5.0.0",
    "@angular/platform-browser": "^5.0.0",
    "@angular/platform-browser-dynamic": "^5.0.0",
    "@angular/router": "^5.0.0",
    "bootstrap": "^3.3.7",
    "core-js": "^2.4.1",
    "font-awesome": "^4.7.0",
    "ng-pick-datetime": "^5.0.0-beta.15",
    "rxjs": "^5.5.2",
    "zone.js": "^0.8.14"
  },
  "devDependencies": {
    "@angular/cli": "1.6.2",
    "@angular/compiler-cli": "^5.0.0",
    "@angular/language-service": "^5.0.0",
    "@types/jasmine": "~2.8.2",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~8.5.2",
    "codelyzer": "^4.0.1",
    "jasmine-core": "~2.8.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~1.7.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.2.2",
    "ts-node": "~4.0.2",
    "tslint": "~5.8.0",
    "typescript": "~2.6.2"
  }
}
angular angular5 angular-animations