Error: Cannot resolve type entity i2.ExtensionsModule to symbol

Question

I am upgrading Angular 5.x to 15.x.

I have resolved most build errors except this -

    ./src/main.ts - Error: Module build failed (from ./node_modules/@ngtools/webpack/src/ivy/index.js):
Error: Cannot resolve type entity i2.ExtensionsModule to symbol

./src/polyfills.ts - Error: Module build failed (from ./node_modules/@ngtools/webpack/src/ivy/index.js):
Error: Cannot resolve type entity i2.ExtensionsModule to symbol

I have tried adding "preserveSymlinks": true in my angular.json file but it didn't help.

I also tried adding

  "paths": {
    "@syncfusion/*": [
      "./node_modules/@syncfusion/*"
    ],
  }

to my tsconfig.json file with no luck. any pointer in solving this issue is appreciated.

Thanks

Answer 1

installing "intl": "1.2.5" fixed my problem.

Add dependency "intl": "1.2.5" to your package.json