I can't find a way to add images to drawable folder without getting "Cannot resolve symbol R" issue.
And once i get "Cannot resolve symbol R", I can't get rid of it by either clean, rebuild, sync, invalidate cache & restart solutions for the error. Only if i delete the files can I get the build to pass.
I am not sure what is wrong here.
Note: I am on Android Studio 2.1.1
You are facing this issue because your drawable file name is either having any capital letter or starting with a number or containing any special character like
$etc. rename it the error will be gone.
You can use only small letters, underscore(_), numbers(not at beginning) & dot(.) in the name of drawable
For example the name could be
ABC.png then rename it to
abc.png and it will work.
1xYz.JPEG then rename it to
email@example.com then rename it to
After that clean and rebuild & there you Go..!!