[Bug]: Using both react-router-dom and react-router-dom-v5-compat, and running into commonjs/esm related issues

[dhavaljardosh]

What version of React Router are you using?

5.3.3

Steps to Reproduce

I have all these 3 versions in my package.json

"react-router": "5.3.4",
"react-router-dom": "5.3.4",
"react-router-dom-v5-compat": "6.23.1",

And planning to migrate in the future to v6 and that's the reason we have the compat version.

But we keep running into jest issue of test failing with a message saying that
You are loading the ES modules build of React Router on a page that is already running the CommonJS build, so things won't work right.

Expected Behavior

Jest tests should be running

Actual Behavior

Jest test failing with the below message:

Test suite failed to run

You are loading the ES modules build of React Router on a page that is already running the CommonJS build, so things won't work right.

[dhavaljardosh]

turned out we had one import from react-router-dom which was causing the issue.