React Profiler: "Timeline profiling not supported"?

[vikr00001]

I can’t tell yet whether this has any relationship to Meteor. But someone here may still have the answer.

I’m debugging my React app on Mac using Chrome. I’ve installed React 18, and the latest React Devtools Chrome extension:

When I go to the React Profiler tab and click the record button, I see:

Timeline profiling not supported. Timeline profiler requires a development or profiling build of react-dom@^18.

Click here to learn more about profiling.

Okay, so I go to the React docs and it talks about adding a <Profiler> component. I did that and still get the same error.

What am I missing?

[minhna]

are you sure your app is running react 18?
I’ve just checked my test app and timeline feature works (I’ve never used this before )

[vikr00001]

Here’s what’s in package.json:

"react": "^18.2.0",