My attempt to compile my Angular 6 project is encountering an error. The error message points to a problem in the core.d.ts file located within the node_modules folder, specifically on line

Struggling to build my project, I keep encountering the error message shown in the screenshot below. Included is my package.json file with all the dependencies currently being used.

I've been stuck with this issue for a few days now and none of the solutions I found so far have worked.

"dependencies": {
    "@angular/animations": "^6.0.5",
    …
  },
"devDependencies": {
    "@angular-devkit/build-angular": "^0.6.8",
    …
  }

Error message screenshot when attempting to run the project

Answer №1

Remove the current version of TS from your system. Download and install the most recent version of TS that is available to you.

npm uninstall -D typescript 
npm i -D <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="b3c7cac3d6c0d0c1dac3c7f3879d819d87">[email protected]</a>

You can also check out this resource for more information: https://github.com/DefinitelyTyped/DefinitelyTyped/issues/8769

Answer №2

To remove the existing version of Typescript, use the following command: npm uninstall typescript --save Next, install it again by running: npm install typescript --save-dev

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