not installing firebase on angular19

[pavansrinivas32]

ng add @angular/fire
✔ Determining Package Manager
› Using package manager: npm
✔ Searching for compatible package version
› Unable to find compatible package. Using 'latest' tag.
✔ Loading package information from registry
› ⚠ Package has unmet peer dependencies. Adding the package may not succeed.
✔ Confirming installation
✖ Unable to install package

npm error code ERESOLVE
npm error ERESOLVE unable to resolve dependency tree
npm error
npm error While resolving: example@0.0.0
npm error Found: @angular/common@19.1.1
npm error node_modules/@angular/common
npm error @angular/common@"^19.0.0" from the root project
npm error
npm error Could not resolve dependency:
npm error peer @angular/common@"^18.0.0" from @angular/fire@18.0.1
npm error node_modules/@angular/fire
npm error @angular/fire@"18.0.1" from the root project
npm error
npm error Fix the upstream dependency conflict, or retry
npm error this command with --force or --legacy-peer-deps
npm error to accept an incorrect (and potentially broken) dependency resolution.
npm error
npm error
npm error For a full report see:
npm error C:\Users\pavan\AppData\Local\npm-cache_logs\2025-01-16T15_41_21_682Z-eresolve-report.txt
npm error A complete log of this run can be found in: C:\Users\pavan\AppData\Local\npm-cache_logs\2025-01-16T15_41_21_682Z-debug-0.log

[google-oss-bot]

This issue does not seem to follow the issue template. Make sure you provide all the required information.

[peciulevicius]

I'm having same issue when trying to install it on angular 19

[Mayocampo]

Same issue trying to add to Project with Angular 19.1.1

`$ ng add @angular/fire
✔ Determining Package Manager
› Using package manager: npm
✔ Searching for compatible package version
› Found compatible package version: @angular/fire@19.0.0.
✔ Loading package information from registry
✔ Confirming installation
✖ Unable to install package

npm error code ERESOLVE
npm error ERESOLVE could not resolve
npm error
npm error While resolving: myappname@0.0.0
npm error Found: @angular/core@19.1.1
npm error node_modules/@angular/core
npm error peer @angular/core@"19.1.1" from @angular/animations@19.1.1
npm error node_modules/@angular/animations
npm error peer @angular/animations@"^19.0.0 || ^20.0.0" from @angular/material@19.1.0
npm error node_modules/@angular/material
npm error @angular/material@"^19.1.0" from the root project
npm error peerOptional @angular/animations@"19.1.1" from @angular/platform-browser@19.1.1
npm error node_modules/@angular/platform-browser
npm error peer @angular/platform-browser@"19.1.1" from @angular/forms@19.1.1
npm error node_modules/@angular/forms
npm error peer @angular/forms@"^19.0.0 || ^20.0.0" from @angular/material@19.1.0
npm error node_modules/@angular/material
npm error 1 more (the root project)
npm error 4 more (@angular/material, ...)
npm error 1 more (the root project)
npm error peer @angular/core@"^19.0.0 || ^20.0.0" from @angular/cdk@19.1.0
npm error node_modules/@angular/cdk
npm error peer @angular/cdk@"19.1.0" from @angular/material@19.1.0
npm error node_modules/@angular/material
npm error @angular/material@"^19.1.0" from the root project
npm error @angular/cdk@"^19.1.0" from the root project
npm error 9 more (@angular/common, @angular/compiler, @angular/forms, ...)
npm error
npm error Could not resolve dependency:
npm error @angular/fire@"19.0.0" from the root project
npm error
npm error Conflicting peer dependency: @angular/core@19.1.6
npm error node_modules/@angular/core
npm error peer @angular/core@"19.1.6" from @angular/platform-browser-dynamic@19.1.6
npm error node_modules/@angular/platform-browser-dynamic
npm error @angular/platform-browser-dynamic@"^19.1.0" from the root project
npm error peer @angular/platform-browser-dynamic@"^19.0.0" from @angular/fire@19.0.0
npm error node_modules/@angular/fire
npm error @angular/fire@"19.0.0" from the root project
npm error
npm error Fix the upstream dependency conflict, or retry
npm error this command with --force or --legacy-peer-deps
npm error to accept an incorrect (and potentially broken) dependency resolution.`

[Sourdeval]

Same issue here, some workaround to solve it ? I'm beginner
--force and --legacy-peer-deps didn't work

[ulver2812]

Same issue here:

ng add @angular/fire
✔ Determining Package Manager
  › Using package manager: npm
✔ Searching for compatible package version
  › Found compatible package version: @angular/fire@19.0.0.
✔ Loading package information from registry
✔ Confirming installation
✖ Unable to install package

npm error code ERESOLVE
npm error ERESOLVE could not resolve
npm error
npm error While resolving: cigar-keeper@0.0.1
npm error Found: @angular/core@19.1.5
npm error node_modules/@angular/core
npm error   peer @angular/core@"19.1.5" from @angular/animations@19.1.5
npm error   node_modules/@angular/animations
npm error     peerOptional @angular/animations@"19.1.5" from @angular/platform-browser@19.1.5
npm error     node_modules/@angular/platform-browser
npm error       peer @angular/platform-browser@"19.1.5" from @angular/forms@19.1.5
npm error       node_modules/@angular/forms
npm error         peer @angular/forms@">=16.0.0" from @ionic/angular@8.4.3
npm error         node_modules/@ionic/angular
npm error         1 more (the root project)
npm error       3 more (@angular/platform-browser-dynamic, @angular/router, the root project)
npm error     @angular/animations@"^19.0.0" from the root project
npm error   peer @angular/core@"19.1.5" from @angular/common@19.1.5
npm error   node_modules/@angular/common
npm error     peer @angular/common@"19.1.5" from @angular/forms@19.1.5
npm error     node_modules/@angular/forms
npm error       peer @angular/forms@">=16.0.0" from @ionic/angular@8.4.3
npm error       node_modules/@ionic/angular
npm error         @ionic/angular@"^8.0.0" from the root project
npm error       1 more (the root project)
npm error     peer @angular/common@"19.1.5" from @angular/platform-browser@19.1.5
npm error     node_modules/@angular/platform-browser
npm error       peer @angular/platform-browser@"19.1.5" from @angular/forms@19.1.5
npm error       node_modules/@angular/forms
npm error         peer @angular/forms@">=16.0.0" from @ionic/angular@8.4.3
npm error         node_modules/@ionic/angular
npm error         1 more (the root project)
npm error       3 more (@angular/platform-browser-dynamic, @angular/router, the root project)
npm error     3 more (@angular/platform-browser-dynamic, @angular/router, the root project)
npm error   7 more (@angular/compiler, @angular/forms, ...)
npm error
npm error Could not resolve dependency:
npm error @angular/fire@"19.0.0" from the root project
npm error
npm error Conflicting peer dependency: @angular/core@19.2.5
npm error node_modules/@angular/core
npm error   peer @angular/core@"19.2.5" from @angular/platform-browser-dynamic@19.2.5
npm error   node_modules/@angular/platform-browser-dynamic
npm error     @angular/platform-browser-dynamic@"^19.0.0" from the root project
npm error     peer @angular/platform-browser-dynamic@"^19.0.0" from @angular/fire@19.0.0
npm error     node_modules/@angular/fire
npm error       @angular/fire@"19.0.0" from the root project
npm error
npm error Fix the upstream dependency conflict, or retry
npm error this command with --force or --legacy-peer-deps
npm error to accept an incorrect (and potentially broken) dependency resolution.

[BaronVonPerko]

I had this same issue and was able to resolve it.

Run ng update

Then, update all of the packages (these will probably just be minors/patches).

Then, run ng add @angular/fire. Hope this helps!