This error message is given by the Android app when kdeconnect (or in my case GSConnect) connects to my phone. It signals that sharing won't work because no share locations have been configured. There is no problem with the functionality that I'm aware of; however, the error message is rather obscure. How about something like: Sharing will not work until you configure a storage location under "Plugin settings, Filesystem expose". It is more confusing because it's not obvious that the error is coming from the phone rather than from the PC application (i.e. kde-kdeconnect or GSConnect). Thanks for kdeconnect, it makes interworking between Android and GNU/Linux so much better!