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I'm getting the following error when creating a new project using Angular CLI v13.1.0

\ Installing packages (npm)...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/typescript npm ERR! dev typescript@"~4.5.2" from the root project npm ERR! peer typescript@">=4.4.3 <4.6" from @angular-devkit/[email protected] npm ERR! node_modules/@angular-devkit/build-angular npm ERR! dev @angular-devkit/build-angular@"~13.1.0" from the root project npm ERR! npm ERR! Could not resolve dependency: npm ERR! peer typescript@">=4.4.2 <4.5" from @angular/[email protected] npm ERR! node_modules/@angular/compiler-cli npm ERR! dev @angular/compiler-cli@"~13.0.0" from the root project npm ERR! peer @angular/compiler-cli@"^13.0.0 || ^13.1.0-next" from @angular-devkit/[email protected] npm ERR! node_modules/@angular-devkit/build-angular npm ERR! dev @angular-devkit/build-angular@"~13.1.0" 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. npm ERR! npm ERR! See C:\Users\user\AppData\Local\npm-cache\eresolve-report.txt for a full report. npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\user\AppData\Local\npm-cache\_logs\2021-12-10T12_46_21_814Z-debug.log × Package install failed, see above. The Schematic workflow failed. See above. 

I'm using Node JS version 16.13.1 and npm version 8.1.2

I tried clearing npm cache with --force, also reinstalled Node JS. Still no luck.

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3 Answers 3

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So I solved it like this:

  1. I created the project using ng new. It then created the project but threw an error when installing the dependencies.

  2. Then I manually edited the package.json file and replaced all angular package versions 13.0.0 with 13.1.0 and ran npm i.

After that, all packages were installed perfectly fine and I could run ng serve.

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This is just a TypeScript patch version issue which is being tracked here: https://github.com/angular/angular-cli/issues/22333, so just downgrade or npm i --force until they fix it.

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go to this path

C:\Users\user\AppData\Local

and delete this folder.

npm-cache

then test it.

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