How to get rid of the warning: Use '$' instead of '.' for inner classes in Eclipse

If you get this warning for a class which is not actually an inner class, it's because you are using uppercase characters in your package name, which is not conventional.

I tried also to change only the first letter of the package name to be lower case, the warning disappeared.

You must use lower case in your package name

or add this atrr in application tag

tools:ignore="InnerclassSeparator"

To Ignore this Waring