TS issue with Circular dependency

TypeError: Class extends value undefined is not a function or null

Problem

Circular dependency

1. I was trying to create an object of class which I have already extended

2. I was trying to import a class which I have already extended

Solution:-

Ways I tried

On root folder, installing and ts-node and typescripts again just to check the compatibility of the versions.

npm install ts-node --save-dev
npm install typescript -g 
npm install typescript --save-dev 

In protractor config, changed the way beforeLaunch was written.

beforeLaunch: function () {
require('ts-node/register')
} 

This was causing the problem:

1. Use private static getter

2. Avoid static members which are resolved during load time

3. Remove the extends reference

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