Upgrading from Angular 12 to 14 is failing-CodePudding

I want to update this code to Angular 14 from 12, but ng update isn't working:

https://github.com/PacktPublishing/Reactive-Patterns-with-RxJS-for-Angular/tree/main/Chapter04

npm install fails with:

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: [email protected]
npm ERR! Found: [email protected]
npm ERR! node_modules/rxjs
npm ERR!   rxjs@"7.5.4" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer rxjs@"^6.5.3" from @angular/[email protected]
npm ERR! node_modules/@angular/core
npm ERR!   @angular/core@"~12.1.1" from the root project
npm ERR!   peer @angular/core@"12.1.5" from @angular/[email protected]
npm ERR!   node_modules/@angular/animations
npm ERR!     @angular/animations@"~12.1.1" 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.

ng update gives:

Using package manager: npm
Collecting installed dependencies...
Found 0 dependencies.
    We analyzed your package.json, there are some packages to update:
    
      Name                               Version                  Command to update
     --------------------------------------------------------------------------------
      @angular/cdk                       12.2.13 -> 13.3.9        ng update @angular/cdk@13
      @angular/cli                       12.1.4 -> 13.3.9         ng update @angular/cli@13
      @angular/core                      12.1.5 -> 13.3.9         ng update @angular/core@13

The update commands all fail with a message like this:

$ ng update @angular/cdk@13
The installed Angular CLI version is outdated.
Installing a temporary Angular CLI versioned 13.3.9 to perform the update.
✔ Packages successfully installed.
Using package manager: 'npm'
Collecting installed dependencies...
Found 0 dependencies.
Package '@angular/cdk' is not a dependency.

ng version shows:

Angular CLI: 14.2.1
Node: 16.17.0
Package Manager: npm 8.15.0 
OS: linux x64

Angular: <error>
... animations, cdk, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1402.1 (cli-only)
@angular-devkit/build-angular   <error>
@angular-devkit/core            14.2.1 (cli-only)
@angular-devkit/schematics      14.2.1 (cli-only)
@angular/cli                    14.2.1 (cli-only)
@schematics/angular             14.2.1 (cli-only)
rxjs                            6.6.7 (cli-only)
typescript                      <error>

How can I upgrade this source to Angular 14?

CodePudding user response：

npm is broken. Running yarn install worked, with a few warnings about peer dependencies. The project runs.