Android: Setting recoil state yields "ownKeys target is non-extensible but trap result keys differ from target keys" on v12

[mattlewer]

Android: Setting recoil state yields "ownKeys target is non-extensible but trap result keys differ from target keys" on v12

[mattlewer]

Yep, Hermes is enabled on both

podfile:
:hermes_enabled => true

gradle.properties:
hermesEnabled=true

Also, if it helps:
RN Version: "0.72.6"
realm: "12.5.0"
@react/realm: "0.6.2"
recoil: "0.7.6"

[kraenhansen]

It would be great if you could create an issue with the recoil repository too, I suspect it is their Proxy throwing this.

[mattlewer]

Unfortunately there has been no reply from the Recoil repo guys. The package has not been updated in almost a year and allegedly the lead dev has been let go by Meta. As a result we are in the process of switching from using Recoil to another method (useContext).

Not sure where this leaves this bug as technically it is still a problem, but not one that looks like it will be solved soon if it is indeed the Recoil side causing these issues. Using useContext we do not face this issue.

[kneth]

@mattlewer Thank you for getting back to us.

I am happy to hear that you have found an alternative solution. I agree, it is unlikely that the issue will be fixed. I will leave the issue open for other users to find it in case they run into the same situation - and can learn from your solution.

[kraenhansen]

Thanks for reporting the issue and providing source-code to help us reproduce it!
While I haven't verified the bug myself, this does seem like a use-case that we'd like to support, although we don't explicitly test for it.

Are you explicitly mentioning Android, because this doesn't occur on iOS or is it simply because that's the only platform you've tested on? If the latter is the case, I'd like to update the title to be more precise - for example:

Setting recoil state yields "ownKeys target is non-extensible but trap result keys differ from target keys" on v12

[mattlewer]

Are you explicitly mentioning Android, because this doesn't occur on iOS or is it simply because that's the only platform you've tested on? If the latter is the case, I'd like to update the title to be more precise - for example:

Setting recoil state yields "ownKeys target is non-extensible but trap result keys differ from target keys" on v12

Thank you for your quick response, this appears to only occur on Android, strangely iOS is working fine :)

[kraenhansen]

Just to be sure, are you testing with Hermes enabled on both iOS and Android?

[kraenhansen]

Might be related to facebook/hermes#1063

[nirinchev]

Closing this as there's nothing obvious left for us to do here.