I've used the snap package manager to install packages and I'm always getting the same error, even with the simple hello world example:

$ sudo snap install hello $ hello cannot create user data directory: /home/aaa/snap/hello/20: Bad file descriptor

Running with sudo solves the problem for the hello program, but why do I even need to do sudo?

BTW, for the other packages (Meshlab, CloudCompare) it doesn't work also with sudo and gives different errors. For example:

~$ sudo cloudcompare.ccViewer mkdir: cannot create directory '/run/user/0': Permission denied No protocol specified QXcbConnection: Could not connect to display :0

The snap version and Ubuntu distro are:

$ snap version snap 2.22.7 snapd 2.22.7 series 16 ubuntu 14.04 kernel 4.4.0-64-generic
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1 Answer

Any chance your home directory is an nfs share with no-write-by-root enabled? If so, try logging in as another user that has a local home.

Also, see:

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