I got this error after using your plugin
error: /Users/User/Library/Developer/Xcode/DerivedData/Unity-iPhone-gvttajoivpvyzcdcgyqgrpcvstmn/Build/Products/ReleaseForRunning-iphoneos/Unity-iPhone-Stickers.appex: No such file or directory
After that I decided to delete the plugin in Unity and add sticker manually in Xcode. It works well at first, but after I build from unity to Xcode, the error show up again? Seems that the plugin is not removed completely from unity? I have delete the whole stickers folder from your plugin.
Pls help me to solve the problem. It has stuck me for 2 days.