![BUG: use gradle:3.6.0-rc01 Didn't find class "androidx.appcompat.R · Issue #817 · objectbox/objectbox-java · GitHub BUG: use gradle:3.6.0-rc01 Didn't find class "androidx.appcompat.R · Issue #817 · objectbox/objectbox-java · GitHub](https://user-images.githubusercontent.com/12067656/72625979-c7df7c00-3984-11ea-9fc0-d4b0e184a255.png)
BUG: use gradle:3.6.0-rc01 Didn't find class "androidx.appcompat.R · Issue #817 · objectbox/objectbox-java · GitHub
![gradle - Android Studio marks R in red with error message "cannot resolve symbol R", but build succeeds - Stack Overflow gradle - Android Studio marks R in red with error message "cannot resolve symbol R", but build succeeds - Stack Overflow](https://i.stack.imgur.com/p7Wg3.png)
gradle - Android Studio marks R in red with error message "cannot resolve symbol R", but build succeeds - Stack Overflow
![Cannot resolve symbol R error in Android Studio | how to resolve android studio error |@CodeByAshish - YouTube Cannot resolve symbol R error in Android Studio | how to resolve android studio error |@CodeByAshish - YouTube](https://i.ytimg.com/vi/YIAKS9zy-lc/sddefault.jpg)
Cannot resolve symbol R error in Android Studio | how to resolve android studio error |@CodeByAshish - YouTube
![java - Why does my Android Studio code randomly get underlined in red even when there is no error? - Stack Overflow java - Why does my Android Studio code randomly get underlined in red even when there is no error? - Stack Overflow](https://i.stack.imgur.com/8jGaO.png)