Cannot install angular fancy grid via npm

I am following the instructions to install angular fancy grid using npm but there is an error.

I have tried this

npm install --save fancygrid fancy-grid-angular

and errors appear

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: front-end@0.0.0
npm ERR! Found: @angular/common@15.2.9
npm ERR! node_modules/@angular/common
npm ERR!   @angular/common@"^15.2.0" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer @angular/common@"^6.0.0-rc.0 || ^6.0.0" from fancy-grid-angular@0.0.7
npm ERR! node_modules/fancy-grid-angular
npm ERR!   fancy-grid-angular@"*" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR! 
npm ERR! See C:\Users\user\AppData\Local\npm-cache\eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\user\AppData\Local\npm-cache\_logs23-05-17T04_37_31_724Z-debug-0.log

Documentation: fancy grid

it's because you have dependency conflict. probably your dependency is compatible with lower version of angular. like it said it is using @angular/common@"^6.0.0 but yours is using @angular/common@"^15.2.0" you can try downgrading but it's better to do as it said and try --legacy-peer-deps:

> npm install --legacy-peer-deps