I\'ve been coding around in android studio for a decent bit now. Recently an issue popped up where the project would be unable to compile and I traced down the error to a duplic
GradientColor_fontVariationSettings means fontVariationSettings attribute of GradientColor class. So, check res/attr, shapes in res/drawable folder which uses gradient and other gradient related resources. If nothing seems suspicious, check imported libraries.
If you want to find "GradientColor" or "fontVariationSettings" occurence in a / entire project, Android Studio has a menu "Find in path".
Refs.
Drawable resources - Shape drawable
GradientDrawable
Search all the occurrences of a string in the entire project in Android Studio
Updated:
Edit > Find > Find Usage may help to search usages.