"The node you're attempting to unmount was rendered by another copy of React"

[volkanunsal]

I came across this error in the HelloWorld app with Rails 5.0.1. Anyone have any idea how to fix it?

[volkanunsal]

I believe I figured it out. Instead of using "turbolinks:before-cache" event, the callback was hooked into "turbolinks:before-render", which is not the same thing. Here is a compatibility reference between versions 2 and 5.

The problem can be solved by modifying this line. I have submitted a pull request for it.