javascript - 从 Angular 12 降级到 Angular 8 时出现问题

Question

我尝试使用 Angular 8 设置 Angular 项目，但意外安装了 Angular 12。我在项目结束时意识到了这一点，并尝试降级，但这是尝试后发生的情况：

dependencies": {
    "@angular/animations": "~12.2.8",
    "@angular/common": "~12.2.8",
    "@angular/compiler": "~12.2.8",
    "@angular/core": "~12.2.8",
    "@angular/forms": "~12.2.8",
    "@angular/platform-browser": "~12.2.8",
    "@angular/platform-browser-dynamic": "~12.2.8",
    "@angular/router": "~12.2.8",
    "@okta/okta-angular": "^3.2.2",
    "@okta/okta-signin-widget": "^5.10.1",
    "core-js": "^2.5.4",
    "rxjs": "~7.3.1",
    "tslib": "^1.9.0",
    "zone.js": "~0.11.4
}

但在控制台中：

Angular CLI: 8.3.29
Node: 16.4.1
OS: win32 x64
Angular: undefined
...

Package                      Version

    ------------------------------------------------------
    @angular-devkit/architect    0.803.29 (cli-only)
    @angular-devkit/core         8.3.29 (cli-only)
    @angular-devkit/schematics   8.3.29 (cli-only)
    @schematics/angular          8.3.29 (cli-only)
    @schematics/update           0.803.29 (cli-only)

我应该怎么办？

如果我尝试创建一个新项目以避免此错误，我可以将ComponentandService文件夹直接复制到新的，因为我无法从头开始项目吗？

标签： javascriptnode.jsangularangular8angular12