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I'm trying to build an angular project to be deployed on Firebase, but I can't run my npm run build or even npm start commands due to the following error.

ERROR in node_modules/@angular/fire/database/interfaces.d.ts(2,26): 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'.

I've gone through past questions, and have cleared my node_modules folder, as well as package-lock.json file, and reinstalled all the dependencies. I still keep getting this error.

Here's what I'm using in my app:

"@angular/animations": "^5.2.0",
"@angular/common": "^5.2.0",
"@angular/compiler": "^5.2.0",
"@angular/core": "^5.2.0",
"@angular/forms": "^5.2.0",
"@angular/http": "^5.2.0",
"@angular/platform-browser": "^5.2.0",
"@angular/platform-browser-dynamic": "^5.2.0",
"@angular/router": "^5.2.0",
"angularfire2": "^5.1.1",
"bootstrap": "^4.1.3",
"core-js": "^2.4.1",
"firebase": "^5.7.0",
"jquery": "^3.3.1",
"particles.js": "^2.0.0",
"rxjs": "^5.5.6",
"zone.js": "^0.8.19"

Can someone please help me with this. Thank you in advance.

Cheers!

jerome
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2 Answers2

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Maybe try to use angularFire2 which seems to be the angular firebase lib ;-)

angularfire2 @ github

angularfire2 @ npm

This firebase issue seems to be the same.

Additional this angularFire2 Stackblitz demo is working for me.

Edit:

Last but not least you might update your angular version (try to you use angular6 or 7).

Quote from the firebase issue:

Also I noticed you are on Angular 5. Would you be able to upgrade to angular6 or 7 and use the new cli to see if the problem persist? AngularFire project doesn't seem to have this problem and they are on angular6: https://github.com/angular/angularfire2

zerocewl
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1

I changed angularFire2 to @angular/fire as per the suggestion from @zerocewl.

Not just at npm install but in app.module.ts as well. Installed npm-check-updates and then I used ncu -u and npm install to update everything to the latest versions.

Solved a typescript issue by downgrading to version 3.1.6:

ERROR in The Angular Compiler requires TypeScript >=3.1.1 and <3.2.0 but 3.2.2 was found instead.

Then it worked!

jerome
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