Npm issues for installing packages

It seems that the package management of npm, and sometimes yarn in the new version of next, have a problem, and the packages cannot be installed except in the legacy mode... please guide me in this matter.

1Deployment URL or Custom Domain:2Environment (local, preview, production):3Project Framework:4Build Settings:5  Framework Preset:6  Build Command (if not default):7  Output Directory (if not default):8  Install Command (if not default):9Node/Runtime Version:10Package Manager:11Relevant Packages:

Hey,

Can you send us the error you are receiving? Using legacy mode is likely mean your packages are outdated and may not compatible with recent version of Node.js

1Deployment URL or Custom Domain:2Environment (local, preview, production):3Project Framework:4Build Settings:5  Framework Preset:6  Build Command (if not default):7  Output Directory (if not default):8  Install Command (if not default):9Node/Runtime Version:10Package Manager:11Relevant Packages:

Hey,

Can you send us the error you are receiving? Using legacy mode is likely mean your packages are outdated and may not compatible with recent version of Node.js