Install Forge throwing error

I’m following https://developer.atlassian.com/platform/forge/getting-started/?tabId=1&tab=windows+10 to install latest Node.Js in my laptop. The Node.JS is installed successfully but while installing Forge, I’m getting error
npm warn deprecated inflight@1.0.6: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.
npm warn deprecated gar@1.0.4: Package no longer supported. Contact Support at npm | Support for more info.
npm warn deprecated npmlog@4.1.2: This package is no longer supported.
npm warn deprecated rimraf@3.0.2: Rimraf versions prior to v4 are no longer supported
npm warn deprecated glob@7.2.3: Glob versions prior to v9 are no longer supported
npm warn deprecated glob@8.1.0: Glob versions prior to v9 are no longer supported
npm warn deprecated are-we-there-yet@1.1.7: This package is no longer supported.
npm warn deprecated gauge@2.7.4: This package is no longer supported.
npm warn deprecated memfs@3.6.0: this will be v4

Hi @RishiSohaney,

It looks like you’re seeing warnings, but the installation should go ahead. If you run forge --version does it confirm that Forge has been installed?

Cheers!
Mel

It started with Warning message but at end it throws message that Froge is not installed

U:>npm install -g @forge/cli
npm warn deprecated inflight@1.0.6: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.
npm warn deprecated gar@1.0.4: Package no longer supported. Contact Support at npm | Support for more info.
npm warn deprecated npmlog@4.1.2: This package is no longer supported.
npm warn deprecated rimraf@3.0.2: Rimraf versions prior to v4 are no longer supported
npm warn deprecated glob@7.2.3: Glob versions prior to v9 are no longer supported
npm warn deprecated glob@8.1.0: Glob versions prior to v9 are no longer supported
npm warn deprecated are-we-there-yet@1.1.7: This package is no longer supported.
npm warn deprecated gauge@2.7.4: This package is no longer supported.
npm warn deprecated memfs@3.6.0: this will be v4

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U:>forge --version
error: [LaunchDarkly] network error (Error: self-signed certificate in certificate chain)
10.7.0

U:>cli
‘cli’ is not recognized as an internal or external command,
operable program or batch file.

U:>c:

C:>forge --version
error: [LaunchDarkly] network error (Error: self-signed certificate in certificate chain)
10.7.0