I am using the below code in my client/index.js file, I only see the console log measures but the React performance devtool extension is not working, I tried multiple options by reinstalling the extension , restart the server , followed the order of setup mentioned in the installation document .
Please let me know where i am going wrong. My chrome version Version 71.0.3578.98 (Official Build) (64-bit), My React Version 16.2

code:

import { registerObserver } from 'react-perf-devtool';

registerObserver({}, (measures) => {
console.log(measures);
});