This warning is being issued by the warnings pragma because you are only referencing the $Objects scalar in the main package once. It is not clear to me why you would use the fully-qualified path name in that context, as you would get exactly the same result with a my declaration without the error message. As well, if you used the variable more than once (i.e. to do something), it would not return that error either. If you use diagnostics (diagnostics), a more verbose error message will be printed that will make any message issued by strict and warnings clearer (or least more verbose).