Missing Key: MSMessagesExtensionStoreIconName

This is an error indicating that you haven't set an app icon for your iMessage app. We're aware that the error message is not very helpful and are going to be updating it to be more informative. You wouldn't set that key specifically, it'll be set automatically after you set an app icon in the asset catalog.

What kind of project is this? Is this a standalone sticker pack, or iMessage app? Or are you adding this as a target to an iOS app?

If you're able to attach the project (or a sample project structured in the same way that exhibits this) to a bug report we can dig into it further. The upshot is that you shouln't have to manually intervene on creating this key.

So it is not the icon display name?

I'm asking because I know I might have gone wrong somewhere, but I'm not so sure where.

I am trying to build an iMessage app, with just a few capabilities above a simple sticker pack. The app icons/iMessage icons are set (I've moved them in manually into the asset catalog) for both the actual /appName and the /MessagesExtension. As amotionuniverse mentions above, in the general settings tab, the asset catalog is set to Appicon/iMessage icon.

Thank you all. It's reassuring to receive these types of answers.

Edit: oh I am getting unassigned children warnings, but imo all the relevant icon images are set.

I don't know what value it specifically gets, and as I mentioned, you generally shoudln't have to worry about setting it. If you're not able to get ti to work, could you toss a sample project showing the issue into a bug report and post the bug number here?

so do i just put this on the info.plist and it should work fine ? "MSMessagesExtensionStoreIconName" what about the type and value ?

Yes this too happened with me. And the file had been generated by the template from Apple. So I suspect that there's a bug in the templat that generates the file named: icon-messages-app-iPadAir-512x384@2x.png as being 1025x768 instead of the 1024x768 that is expected.