Error: Toolbar has no editor! on app refresh

[Ulthran]

Running the code in Example.

Any time I would save changes and refresh the app while on the screen with the rich editor (through Metro bundler, but I don't think this problem is specific to that), I would get the below errors and usually would have to rebuild the app to make it responsive again:

ERROR TypeError: _reactNative.Keyboard.removeListener is not a function. (In '_reactNative.Keyboard.removeListener('keyboardDidShow', this.onKeyShow)', '_reactNative.Keyboard.removeListener' is undefined)

This error is located at:
...
ERROR Error: Toolbar has no editor!
ERROR Error: Toolbar has no editor!

Found a similar issue here with a solution that solved this problem as well.

Need to change:

componentDidMount() {
        Appearance.addChangeListener(this.themeChange);
        Keyboard.addListener('keyboardDidShow', this.onKeyShow);
        Keyboard.addListener('keyboardDidHide', this.onKeyHide);
    }

    componentWillUnmount() {
        Appearance.removeChangeListener(this.themeChange);
        Keyboard.removeListener('keyboardDidShow', this.onKeyShow);
        Keyboard.removeListener('keyboardDidHide', this.onKeyHide);
    }

to:

componentDidMount() {
        this.changeListenerSub = Appearance.addChangeListener(this.themeChange);
        this.keyShowSub = Keyboard.addListener('keyboardDidShow', this.onKeyShow);
        this.keyHideSub = Keyboard.addListener('keyboardDidHide', this.onKeyHide);
    }

    componentWillUnmount() {
        this.changeListenerSub?.remove();
        this.keyShowSub?.remove();
        this.keyHideSub?.remove();
    }

Looks as though removeListener was removed from RN in a recent update. Easy fix though.

[KrisLau]

#203 (comment)
Might help

[ashishAmz]

App is crashing and getting same message "Error: Toolbar has no editor!" while initializing the Component