Good, after updating android studio in windows, always mark R.layout.activity_casilla_verificacion in red and all the R of the activity and we can not fix it, the layout is well written.
Problem with the R class in Android Studio [duplicated]
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Apparently it is something usual, I usually fix it by restarting Android Studio or the PC and then entering the project forcing a "rebuild" of the project.
Clicking on "Rebuild project"
answered by
08.11.2017 в 11:27