Update peer dependencies to new Angular version 12

[CrlsMrls]

Version info

Angular: 12.0.0

Firebase: 8.5.0

AngularFire: 6.1.4

How to reproduce these conditions

Steps to set up and reproduce

• update Angular to v 12 ng update @angular/core@12 @angular/cli@12
• clear node_modules folder
• install npm modules with yarn or npm install

Expected behavior

Peer dependencies are met.

Actual behavior

warning " > @angular/[email protected]" has incorrect peer dependency "@angular/common@^9.0.0 || ^10.0.0 || ^11.0.0".
warning " > @angular/[email protected]" has incorrect peer dependency "@angular/core@^9.0.0 || ^10.0.0 || ^11.0.0".
warning " > @angular/[email protected]" has incorrect peer dependency "@angular/platform-browser@^9.0.0 || ^10.0.0 || ^11.0.0".
warning " > @angular/[email protected]" has incorrect peer dependency "@angular/platform-browser-dynamic@^9.0.0 || ^10.0.0 || ^11.0.0".

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[CrlsMrls]

My applications worked perfectly fine with the new Angular 12 and AngularFire 6.1.4

[abraham]

With npm@7 this causes installs to fail.

$ npm i
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: [email protected]
npm ERR! Found: @angular/[email protected]
npm ERR! node_modules/@angular/common
npm ERR!   @angular/common@"12.0.0" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer @angular/common@"^9.0.0 || ^10.0.0 || ^11.0.0" from @angular/[email protected]
npm ERR! node_modules/@angular/fire
npm ERR!   @angular/fire@"6.1.4" 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.