codediodeio/angular-firestarter: error when installing git clone https://github.com/codediodeio/angular-firestarter.git firestarter

[HerveGagnon]

ng --version
Your global Angular CLI version (7.0.2) is greater than your local
version (6.0.1). The local Angular CLI version is used.

To disable this warning use "ng config -g cli.warnings.versionMismatch false".

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/ \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|

/ △ \ | '_ \ / | | | | |/ _ | '__| | | | | | |
/ ___ | | | | (| | || | | (| | | | || | | |
// __| ||_, |_,||_,|| _|||
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Angular CLI: 6.0.1
Node: 10.7.0
OS: darwin x64
Angular: 6.0.1
... animations, cli, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, platform-server, router
... service-worker

Package Version

@angular-devkit/architect 0.6.1
@angular-devkit/build-angular 0.6.1
@angular-devkit/build-optimizer 0.6.1
@angular-devkit/core 0.6.1
@angular-devkit/schematics 0.6.1
@angular/pwa 0.6.1
@ngtools/webpack 6.0.1
@schematics/angular 0.6.1
@schematics/update 0.6.1
rxjs 6.1.0
typescript 2.7.2
webpack 4.6.0

and I am getting the following error:

ERROR in ./src/styles.scss (./node_modules/raw-loader!./node_modules/postcss-loader/lib??embedded!./node_modules/sass-loader/lib/loader.js??ref--14-3!./src/styles.scss)
Module build failed: Error: sass-loader requires node-sass >=4. Please install a compatible version.
at Object.sassLoader (/Users/hervegagnon/project/internal/angularFire/firestarter/node_modules/sass-loader/lib/loader.js:31:19)
ERROR in src/app/core/auth.service.ts(5,22): error TS2307: Cannot find module 'firebase'.

[jorgencnc]

ERROR in ./src/styles.scss (./node_modules/raw-loader!./node_modules/postcss-loader/lib??embedded!./node_modules/sass-loader/lib/loader.js??ref--14-3!./src/styles.scss)
Module build failed: Error: Node Sass does not yet support your current environment: Windows 64-bit with Unsupported runtime (67)
For more information on which environments are supported please see:
https://github.com/sass/node-sass/releases/tag/v4.9.4
at module.exports (C:\firestarter\node_modules\node-sass\lib\binding.js:13:13)
at Object. (C:\firestarter\node_modules\node-sass\lib\index.js:14:35)
at Module._compile (internal/modules/cjs/loader.js:707:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:718:10)
at Module.load (internal/modules/cjs/loader.js:605:32)
at tryModuleLoad (internal/modules/cjs/loader.js:544:12)
at Function.Module._load (internal/modules/cjs/loader.js:536:3)
at Module.require (internal/modules/cjs/loader.js:643:17)
at require (internal/modules/cjs/helpers.js:22:18)
at Object.sassLoader (C:\firestarter\node_modules\sass-loader\lib\loader.js:46:72)
ERROR in node_modules/@angular/fire/auth/auth.d.ts(4,28): error TS2307: Cannot find module 'firebase/app'.
node_modules/@angular/fire/firebase.app.module.d.ts(2,79): error TS2307: Cannot find module 'firebase/app'.
node_modules/@angular/fire/firestore/collection/collection.d.ts(2,27): error TS2307: Cannot find module 'firebase/app'.
node_modules/@angular/fire/firestore/document/document.d.ts(5,27): error TS2307: Cannot find module 'firebase/app'.
node_modules/@angular/fire/firestore/firestore.d.ts(7,27): error TS2307: Cannot find module 'firebase/app'.
node_modules/@angular/fire/firestore/interfaces.d.ts(2,27): error TS2307: Cannot find module 'firebase/app'.
node_modules/@angular/fire/storage/interfaces.d.ts(1,25): error TS2307: Cannot find module 'firebase/app'.
node_modules/@angular/fire/storage/observable/fromTask.d.ts(3,25): error TS2307: Cannot find module 'firebase/app'.
src/app/core/auth.service.ts(5,22): error TS2307: Cannot find module 'firebase'.