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setState warning using v5.0.0-rc.1 with redux-form.

See original GitHub issue

The following error appears using react-redux@5.0.0-rc.1 when I am unmounting component which renders redux-form’s <Field /> component only if the <Field /> has been previously focused. I know that it seems like problem with redux-form but when I switch back to react-redux@4.4.6 everything works fine.

warning.js:36 Warning: setState(...): Can only update a mounted or mounting component. This usually means you called setState() on an unmounted component. This is a no-op. Please check the code for the Connect(ConnectedField) component.

Tested on OSX and Chrome@54.0.2840.98 (64-bit) and Safari@10.0.1 (12602.2.14.0.7)

How to reproduce

Clone the repository https://github.com/pilaas/react-redux-bug
yarn
npm run start
Open browser http://localhost:8080
Open console and enter type store.dispatch({type: 'SHOW_FORM'});
Focus newly appeared input component
Enter store.dispatch({type: 'HIDE_FORM'}); in console
Experience warning

Issue Analytics

State:
Created 7 years ago
Reactions:1
Comments:6 (5 by maintainers)

Top GitHub Comments

2reactions

timdorrcommented, Dec 13, 2016

Pushed out a quick rc2 just now. I’ll try to do 5.0.0 final tomorrow once I’m done with some stuff related to my move this weekend. Draft is ready for the release notes.

1reaction

mariuszdevcommented, Dec 9, 2016

It’s just example project to demonstrate the problem. Programming patterns are not the case here. I don’t need a workaround, I just report the bug (?).