[iOS] Xcode 15.2 build error on Ionic 7

[andrehhtm]

Hi, we use this plugin a long time, but after an upgrade to Ionic 7 and plugin latest version, it starts to crash the build.

Building trough ionic capacitor cli (ionic cap run ios), we received this error:

The following build commands failed:
[capacitor] CompileC /Users/user/dev-projects/my-app/ios/DerivedData/00008110-000E29641E53801E/Build/Intermediates.noindex/Pods.build/Debug-iphoneos/CordovaPlugins.build/Objects-normal/arm64/MixpanelPlugin.o /Users/user/dev-projects/my-app/ios/capacitor-cordova-ios-plugins/sources/CordovaPluginMixpanel/MixpanelPlugin.m normal arm64 objective-c com.apple.compilers.llvm.clang.1_0.compiler (in target 'CordovaPlugins' from project 'Pods')
[capacitor] (1 failure)
[capacitor]
[ERROR] An error occurred while running subprocess capacitor.

The error that Xcode appoints is:
"property 'group' not found on object of type 'Mixpanel *'", at MixpanelPlugin.m.
On the methods: setGroup, addGroup and removeGroup.
After some search on Mixpanel.m, we found that the original is setting group by increasing "people" property, and we changed the code:
[mixpanelInstance.group set:setObject];
To:
[mixpanelInstance.people union:setObject];
With this change, the app build is working again.

This is appropriated? If yes, I'll open a PR with the changes.

[andrehhtm]

ionic info

Ionic:

   Ionic CLI                     : 7.1.1 (/Users/my-user/.nvm/versions/node/v16.20.0/lib/node_modules/@ionic/cli)
   Ionic Framework               : @ionic/angular 7.6.6
   @angular-devkit/build-angular : 17.2.0
   @angular-devkit/schematics    : 17.1.4
   @angular/cli                  : 17.1.4
   @ionic/angular-toolkit        : 11.0.1

Capacitor:

   Capacitor CLI      : 5.7.0
   @capacitor/android : 5.7.0
   @capacitor/core    : 5.7.0
   @capacitor/ios     : 5.6.0

Utility:

   cordova-res : not installed globally
   native-run  : 2.0.1

System:

   NodeJS : v16.20.0
   npm    : 8.19.4
   OS     : macOS Sonoma 14.2.1

[victorsosa]

Yes, please. Pr are welcome