假设

在创建新的Angular应用程序时，我输入了”ng new app-name”命令，但出现了以下错误。

Node.js version v16.1.0 detected.
The Angular CLI requires a minimum Node.js version of either v12.20, v14.15, or v16.10.

Please update your Node.js version or visit https://nodejs.org/ for additional instructions.

操作系统：MacOS BigSur（11.6）
Node.js：nodenv（brew）

尝试过的东西

按照错误提示的指示，我暂时将Node的版本切换为v16.10试了一下。

$ nodenv local 16.1.0

$ nodenv versions

12.2.0
12.18.3
14.15.5
* 16.1.0 (set by /Users/***/angular/.node-version)

再次尝试执行ng new，但结果并没有改变。

结论 (jié

原因可能是因为node或npm的版本过新，也可能原因不明。
执行npm install -g @angular/cli时，出现了这样的消息，但我忽略了它。

npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: '@angular/cli@13.0.4',
npm WARN EBADENGINE required: {
npm WARN EBADENGINE node: '^12.20.0 || ^14.15.0 || >=16.10.0',
npm WARN EBADENGINE npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE yarn: '>= 1.13.0'
npm WARN EBADENGINE },
npm WARN EBADENGINE current: { node: 'v16.1.0', npm: '8.2.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: '@angular-devkit/architect@0.1300.4',
npm WARN EBADENGINE required: {
npm WARN EBADENGINE node: '^12.20.0 || ^14.15.0 || >=16.10.0',
npm WARN EBADENGINE npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE yarn: '>= 1.13.0'
npm WARN EBADENGINE },
npm WARN EBADENGINE current: { node: 'v16.1.0', npm: '8.2.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: '@angular-devkit/core@13.0.4',
npm WARN EBADENGINE required: {
npm WARN EBADENGINE node: '^12.20.0 || ^14.15.0 || >=16.10.0',
npm WARN EBADENGINE npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE yarn: '>= 1.13.0'
npm WARN EBADENGINE },
npm WARN EBADENGINE current: { node: 'v16.1.0', npm: '8.2.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: '@angular-devkit/schematics@13.0.4',
npm WARN EBADENGINE required: {
npm WARN EBADENGINE node: '^12.20.0 || ^14.15.0 || >=16.10.0',
npm WARN EBADENGINE npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE yarn: '>= 1.13.0'
npm WARN EBADENGINE },
npm WARN EBADENGINE current: { node: 'v16.1.0', npm: '8.2.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: '@schematics/angular@13.0.4',
npm WARN EBADENGINE required: {
npm WARN EBADENGINE node: '^12.20.0 || ^14.15.0 || >=16.10.0',
npm WARN EBADENGINE npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE yarn: '>= 1.13.0'
npm WARN EBADENGINE },
npm WARN EBADENGINE current: { node: 'v16.1.0', npm: '8.2.0' }
npm WARN EBADENGINE }

现有版本是

current: { node: 'v16.1.0', npm: '8.2.0' }

并且，看起来 npm 的版本不受支持。

npm: '^6.11.0 || ^7.5.6 || >=8.0.0'

所以，我們需要降低npm的版本，因為npm的版本似乎與node有關聯，所以我們暫時將node的版本降至14.15.5。

nodenv local 14.15.5

只需提供一种选项：再一次、再次。

npm install -g @angular/cli
ng new app

刚刚完成，Angular应用程序顺利创建完成。

参考文献