Cannot read properties of undefined (reading '_leaflet_pos')

iqbalhassan-7654 commented 5 months ago

Bug report in v4

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Please make sure to check the following boxes before submitting an issue.\ Issues opened without using this template will be closed unless they have a good reason not to follow this template.

[x] All peer dependencies are installed: React, ReactDOM and Leaflet.
[x] Using the latest version of React and ReactDOM v18.
[x] Using the supported version of Leaflet (v1.8.0 minimum) and its corresponding CSS file is loaded.
[x] Using the latest v4 version of React-Leaflet.
[x] The issue has not already been reported.
[x] Make sure you have followed the quick start guide for Leaflet.
[x] Make sure you have fully read the documentation and that you understand the limitations.

Expected behavior

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Actual behavior

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Steps to reproduce

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iqbalhassan-7654 commented 5 months ago

piotr-cz commented 4 months ago

I think this may happen when you access native leaflet methods at the time when map container is unmounted.

For example I'm attempting to store map bounds in a state when user navigates to another page. At the same time I'm unmounting map container

marcoangelo commented 2 months ago

@piotr-cz How are you unmounting the map container? I am getting a similar issue as in this bug report; I try to use the remove() method on the map instance (when using the useMap hook) in a hook cleanup effect, but get a [Map container is already initialized] error.

piotr-cz commented 2 months ago

@marcoangelo Now I'm using external state, so it's updates don't trigger leaflet methods after component has been unmounted

PaulLeCam / react-leaflet