When I try to open folders (and the trash can) by double-clicking on them on the desktop nothing happens. However, when I right-click on the folder, select "Open with another application", and then select Nautilus it opens normally. I think that it has something to do with the default file manager maybe?
(I can open other files that aren't folders normally)
Ubuntu – Can’t open desktop folders by double-clicking on Ubuntu 17.10
directorynautilus
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Answer edited out from the question
Solution was obvious, in Nautilus I select a folder, right click, Open with other application, and pick "Files" which is apparently the name for Nautilus. Now that set the default back... until next time! I guess this is a cautionary tale.
Try the following
Go to 'Edit' -> 'Preferences' -> 'Behaviour'
Uncheck Open each folder in a new window
Best Answer
My system is Ubuntu 17.10.
I just had this problem 5 mins ago. Here is my solution.
Just install gnome-tweak
Then turn off and turn on some of the options in the Desktop. Like show icons turn on and turn off. Then it seems like things are refreshed and everything works again!