角向反，角度6到9，安装新版本的角度通用

Question

我尝试将我的角度版本（6到9）升级后，发现旧版本的角度通用可以成功打包，但不能正常运行。

旧有角度的通用包装命令：

 ng build --prod ; ng run [project name]:server ; npm run webpack:server

一些文件将在此命令生效之前创建，但是步骤很复杂，我已经忘记了。

我尝试解决此过程中的问题，但新问题不断出现。

所以我打算尝试new version of angular universal，但似乎两个角度通用版本相互冲突。

我在运行第一个命令时遇到问题：

ng add @nguniversal/express-engine --clientProject [project name]

错误消息：

Skipping installation: Package already installed
ERROR! server.ts already exists.
The Schematic workflow failed. See above.

我的package.json：

"dependencies": {
    "@angular-devkit/build-angular": "^0.803.23",
    "@angular/animations": "^9.0.0-rc.10",
    "@angular/cdk": "^7.3.7",
    "@angular/common": "^9.0.0-rc.10",
    "@angular/compiler": "^9.0.0-rc.10",
    "@angular/core": "^9.0.0-rc.10",
    "@angular/forms": "^9.0.0-rc.10",
    "@angular/http": "^6.0.3",
    "@angular/platform-browser": "^9.0.0-rc.10",
    "@angular/platform-browser-dynamic": "^9.0.0-rc.10",
    "@angular/platform-server": "^9.0.0-rc.10",
    "@angular/router": "^9.0.0-rc.10",
    "@nguniversal/express-engine": "^9.0.0-rc.1",
    "@nguniversal/module-map-ngfactory-loader": "^7.1.1",
    "@ngx-meta/core": "^7.0.0",
    "@ngx-share/core": "^7.1.4",
    "@types/gapi": "0.0.39",
    "@types/jquery": "^3.3.31",
    "core-js": "^2.6.10",
    "csspin": "^1.1.4",
    "express": "^4.17.1",
    "intersection-observer": "^0.5.1",
    "ng-lazyload-image": "^5.1.2",
    "ng-recaptcha": "^4.3.0",
    "ngx-cookie-service": "^2.2.0",
    "ngx-facebook": "^2.4.0",
    "ngx-infinite-scroll": "^6.0.1",
    "npm": "^6.12.0",
    "rxjs": "^6.5.4",
    "zone.js": "^0.10.2"
  },
  "devDependencies": {
    "@angular/cli": "~9.0.0-rc.10",
    "@angular/compiler-cli": "^9.0.0-rc.10",
    "@angular/language-service": "^9.0.0-rc.10",
    "@types/google.analytics": "0.0.39",
    "@types/jasmine": "^2.8.3",
    "@types/jasminewd2": "^2.0.8",
    "@types/node": "^8.10.54",
    "codelyzer": "~4.2.1",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~1.7.1",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "^2.0.6",
    "karma-jasmine": "~1.1.1",
    "karma-jasmine-html-reporter": "^0.2.2",
    "node-sass": "^4.13.1",
    "protractor": "~5.3.0",
    "ts-loader": "^5.4.5",
    "ts-node": "^5.0.1",
    "tslint": "~5.9.1",
    "typescript": "^3.6.4",
    "webpack-cli": "^3.3

Answer 1

首先尝试以下内容

npm cache clean --force
npm install -g @angular/cli
ng new <project-name>

如果问题仍然存在，请尝试此操作（这最终解决了我的工作流问题]]

npm cache clean --force
npm update
ng new <project-name>

谢谢！