Using AirDrop running 10.11.6
Although "AirDrop" is shown in the "Go" drop down menu, when I select it and the AirDrop window opens, there is a question mark in its menu bar. When, the "?" is selected a dialogue box appears that says "The iItem can't be found".
MacBook Pro, Mac OS X (10.6.8), 10.6.8 on one partition, 10.11.6 on