Unity: All versions | Appodeal SDK: All versions
The error Undefined symbols for architecture arm64: "_OBJC_CLASS_$_SKAdImpression" during the iOS build usually happens if XCode or CocoaPods version is lower than required.
The error log example:
To fix it use the versions listed in the Minimum OS requirements section:
Minimum OS requirements:
Unity 2017.4 (Api Compatibility Level - Experimental (.NET 4.6 Equivalent) or 2018.3+
Android API level 16 (Android OS 4.1) and above.
iOS 10.0 or higher.
Use XCode 12.5 or higher.
- CocoaPods 1.10.0 or higher
To update CocoaPods to the latest version, open Terminal and perform the following command: