Angular CLI Installation Warnings

when installing angular cli i get following warnings
WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: '@angular/cli@19.0.7',
npm WARN EBADENGINE required: {
npm WARN EBADENGINE npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE node: '^18.19.1 || ^20.11.1 || >=22.0.0',
npm WARN EBADENGINE yarn: '>= 1.13.0'
npm WARN EBADENGINE },
npm WARN EBADENGINE current: { node: 'v21.7.3', npm: '10.5.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: '@angular-devkit/architect@0.1900.7',
npm WARN EBADENGINE required: {
npm WARN EBADENGINE npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE node: '^18.19.1 || ^20.11.1 || >=22.0.0',
npm WARN EBADENGINE yarn: '>= 1.13.0'
npm WARN EBADENGINE },
npm WARN EBADENGINE current: { node: 'v21.7.3', npm: '10.5.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: '@angular-devkit/core@19.0.7',
npm WARN EBADENGINE required: {
npm WARN EBADENGINE npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE node: '^18.19.1 || ^20.11.1 || >=22.0.0',
npm WARN EBADENGINE yarn: '>= 1.13.0'
npm WARN EBADENGINE },
npm WARN EBADENGINE current: { node: 'v21.7.3', npm: '10.5.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: '@angular-devkit/schematics@19.0.7',
npm WARN EBADENGINE required: {
npm WARN EBADENGINE npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE node: '^18.19.1 || ^20.11.1 || >=22.0.0',
npm WARN EBADENGINE yarn: '>= 1.13.0'
npm WARN EBADENGINE },
npm WARN EBADENGINE current: { node: 'v21.7.3', npm: '10.5.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: '@schematics/angular@19.0.7',
npm WARN EBADENGINE required: {
npm WARN EBADENGINE npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE node: '^18.19.1 || ^20.11.1 || >=22.0.0',
npm WARN EBADENGINE yarn: '>= 1.13.0'
npm WARN EBADENGINE },
npm WARN EBADENGINE current: { node: 'v21.7.3', npm: '10.5.0' }
npm WARN EBADENGINE }
[#############…..] / reify:@schematics/angular: http fetch GET 200 https://registry.npmjs.org/@schematics/angular/-/angular-19.0.7.tgz 14082ms attempt #2 (cache miss)

The warnings indicate that the installed versions of Node.js and npm do not match the versions specified in the `engines` field of the Angular CLI and related packages. Here's a breakdown of the issue and how to resolve it:

### Issue:
1. **Node.js Version**: You're using Node.js `v21.7.3`, but the Angular CLI requires `^18.19.1 || ^20.11.1 || >=22.0.0`. Version 21 is not included in this range.
2. **npm Version**: You have npm `10.5.0`, which satisfies the requirement (`^6.11.0 || ^7.5.6 || >=8.0.0`), so no issues here.
3. **Yarn Version**: Yarn is not explicitly mentioned in your logs, but if needed, ensure it meets the required version `>=1.13.0`.

### Solutions:
#### Option 1: Downgrade Node.js to a Supported Version
Since Node.js 21 is not officially supported by Angular CLI, downgrade to one of the supported versions:
– **Recommended Versions**: `18.19.1` or `20.11.1`.
– Use a version manager like `nvm` to install and switch between Node.js versions:

#### Option 2: Ignore Engine Warnings
If you still want to proceed with Node.js `21.7.3`, you can ignore these warnings, but note that it may cause compatibility issues:
– Use the `–engine-strict=false` flag:

#### Option 3: Use a Docker Container
Since you already have Docker in your setup, you can use an official Node.js Docker image with a compatible version:
1. Pull a supported Node.js image:

2. Run the Angular CLI installation inside the container:

#### Option 4: Upgrade Node.js to 22
If possible, upgrade your Node.js version to `22.0.0` or higher, as it is also supported by Angular CLI.

### Additional Tips:
– Verify your Node.js version after changes:

– Always test your Angular application thoroughly after installing with an unsupported version to ensure stability.