Among the files in the iOS SDK as a static library was the AppsFlyerLib.h file, and once we included this we seem to be able to build for iOS now. Not sure whether it's relevant, but we also disabled ...

Some users cannot play the games that use the UnityPlayer.dll file because it is either missing or not found by the game. The code execution cannot proceed because UnityPlayer.dll was not found.

'error CS0006: Metadata file 'Library/PackageCache/[email protected]/net35/unity-custom/nunit.framework.dll' could not be found' Double-clicking on them does nothing.

1. Uninstall and Reinstall the Affected Application Over time, application files, including important ones like UnityPlayer.dll, can become corrupted due to system crashes, malware, or failed updates.