Migrate tslint to @angular-eslint/schematics: ERESOLVE unable to resolve dependency tree: @angular/[email protected]

Question

I'm trying to migrate tslint to eslint in my angular 11 library using the official documentation here.

When I run the cmd ng add @angular-eslint/[email protected] I'm getting the following error:

✖ Package installation failed: npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! Found: @angular/[email protected]
npm ERR! node_modules/@angular-eslint/schematics/node_modules/@angular/compiler
npm ERR!   peer @angular/compiler@">= 12.0.0 < 13.0.0" from @angular-eslint/[email protected]
npm ERR!   node_modules/@angular-eslint/schematics/node_modules/@angular-eslint/template-parser
npm ERR!     peer @angular-eslint/template-parser@"*" from @angular-eslint/[email protected]
npm ERR!     node_modules/@angular-eslint/schematics/node_modules/@angular-eslint/eslint-plugin-template
npm ERR!       @angular-eslint/eslint-plugin-template@"4.3.0" from @angular-eslint/[email protected]
npm ERR!       node_modules/@angular-eslint/schematics
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer @angular/compiler@">= 11.2.0 < 12.0.0" from @angular-eslint/[email protected]
npm ERR! node_modules/@angular-eslint/schematics/node_modules/@angular-eslint/eslint-plugin-template
npm ERR!   @angular-eslint/eslint-plugin-template@"4.3.0" from @angular-eslint/[email protected]
npm ERR!   node_modules/@angular-eslint/schematics
npm ERR!     dev @angular-eslint/schematics@"4.3.0" from the root project

Does anyone know how to solve it?

Ricardo Rocha · Accepted Answer · 2021-07-20 20:47:00Z

4

I found out here that you just need to run the following command:

npm i -D @angular-eslint/template-parser@4

And then you can run:

ng add @angular-eslint/[email protected]

answered Jul 20, 2021 at 20:47

Ricardo Rocha

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