Possible error with React 17.0.2 UNSAFE

[olscode]

I have enabled React.StrictMode

My code looks like:

And i keep receiving those errors in console:

[cutterbl]

These are not errors. They are warnings, related to React features that will eventually be deprecated. Big Calendar will continue to function with React 17.0.2, as these console warning have no effect on code function.

[olscode]

Okay. Thank you