[BUG] npm install fails on master because Angular 21 dependencies are mixed with NgRx 20

[netalex]

Describe the bug

A fresh install from the current master branch fails with npm install because the published package.json mixes Angular 21 packages with NgRx 20 packages.

Current dependency set includes:

• @angular/core: ^21.0.2
• @ngrx/store: ^20.1.0
• @ngrx/store-devtools: ^20.1.0

This causes npm to stop with ERESOLVE unable to resolve dependency tree.

To Reproduce

1. Clone the repository
2. Use a supported recent Node version
3. Run:

npm install

[puikinsh]

Hi @netalex,

Thank you so much for taking the time to file this — and especially for including the exact reproduction steps and the resolved dependency set. That made it trivial to confirm on our end. You were absolutely right.

Confirmed root cause

@ngrx/store@20.1.0 and @ngrx/store-devtools@20.1.0 peer-depend on @angular/core: ^20.0.0, while the rest of the project is on @angular/core: ^21.0.2. A clean npm install therefore fails with:

npm error ERESOLVE unable to resolve dependency tree
npm error peer @angular/core@"^20.0.0" from @ngrx/store@20.1.0
npm error   @ngrx/store@"^20.1.0" from the root project

This slipped through because an older package-lock.json was still resolving locally — fresh clones had no such luck. Apologies for the friction.

Fix

Bumped both NgRx packages to the Angular 21 line in package.json:

- "@ngrx/store": "^20.1.0",
- "@ngrx/store-devtools": "^20.1.0",
+ "@ngrx/store": "^21.1.0",
+ "@ngrx/store-devtools": "^21.1.0",

@ngrx/store@21.1.0 peer-depends on @angular/core: ^21.0.0, which matches the rest of the project.

Verification

• rm -rf node_modules package-lock.json && npm install → 1068 packages, 0 vulnerabilities, exit 0
• npm run build → production build succeeds
• No source changes were required — NgRx's public API for StoreModule and StoreDevtoolsModule is unchanged between 20 and 21 for the way this template uses it.

The fix is on its way to master. Thanks again for the clear, well-scoped report — it's genuinely appreciated.

Best,
Aigars