I am running Ubuntu 16.04.1 and can confirm the appearance of this error message in the terminal when nautilus is launched. The error sometimes also pops up in a notification window, as observed in Comment #21.
Since I do not use the nautilus-share extension, I simply removed the corresponding package to get rid of this error - as suggested in a comment on the duplicate bug report (https://bugs.launchpad.net/ubuntu/+source/nautilus-share/+bug/225859/comments/3).
I am running Ubuntu 16.04.1 and can confirm the appearance of this error message in the terminal when nautilus is launched. The error sometimes also pops up in a notification window, as observed in Comment #21.
Since I do not use the nautilus-share extension, I simply removed the corresponding package to get rid of this error - as suggested in a comment on the duplicate bug report /bugs.launchpad .net/ubuntu/ +source/ nautilus- share/+ bug/225859/ comments/ 3).
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