TypeError: Cannot read property 'length' of undefined

[maxbarry]

Reactime works for some of my React projects but one errors out upon startup:

...which is this:

This is with:
├─ react@17.0.1
└─ recoil@0.1.2

The projects that do work are older versions using React 16.13.1 and without Recoil.

[aspiers]

If you follow the instructions in #255 then you can get the same error with non-minified version of this source, and even set breakpoints to find out why A.stateNode.classList is undefined.

[Jennamaree]

Taskkill