error while crawling /home/$USER: boost::filesystem::status: Permission denied: “/home$USER/.gvfs”

If you have an error in your terminal with ros when you use the tab completion

[rospack] Warning: error while crawling /home/$USER: boost::filesystem::status: Permission denied: “/home$USER/.gvfs”

You can fix with this both of commands:

$ sudo umount /home/$USER/.gvfs

$ sudo rm -rf ~/.gvfs/

Thanks to
ragingbit in this answer:
permission-denied-gvfs