Regarding Gamekit samples in apple/unityplugins

I built the Gamekit Sample in apple/unityplugins for iOS and ran "_localPlayer = await GKLocalPlayer.Authenticate();" It worked fine up to the point where the GameCenter popup was displayed.

However, the "OnRealtimeMatchmake()" and "OnToggleAccessPoint()" will result in the following error

"MissingMethodException: Default constructor not found for type Apple.GameKit.Multiplayer.GKMatchRequest at System.RuntimeType.CreateInstanceMono"

and

"MissingMethodException: Default constructor not found for type Apple.GameKit.GKAccessPoint at System.RuntimeType.CreateInstanceMono" errors and does not work properly.

Please tell me what is the problem here.

The environment is as follows iPhone SE (iOS15.5), Unity2020.3.33f1, XCode13.4.1

Up vote post of ykawano Down vote post of ykawano
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ykawano
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You may be able to fix this by adding this markup to the projects main link.xml file  

<assembly fullname="Apple.Core" ignoreIfMissing="1" preserve="all"/>  

Posted by
dirtyrectangle
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Just to add to this: We also had to add: <assembly fullname="Apple.GameKit" ignoreIfMissing="1" preserve="all"/>

Posted by
aaronflippo
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Sorry, I feel absolutely daft asking this but, which Link.xml does this have to be added to?

Posted by
Physicalpariah
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The stripping process can be customized by adding a custom link.xml file to the Assets folder of your Unity project. This specifies which types and namespaces should be excluded from stripping.

link.xml

<linker>
     <assembly fullname="Apple.Core" ignoreIfMissing="1" preserve="all"/>  
</linker>
Posted by
igic74
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