Cannot run snap app

Question

I have successfully installed snapd on Ubuntu 16.04 but while running the app, say snap run hello I am getting the following error:

cannot create lock directory /run/snapd/lock: Permission denied

I have tried the following

sudo apparmor_parser --replace --write-cache /etc/apparmor.d/usr.lib.snapd.snap-confine.real --cache-loc /etc/apparmor.d/cache

but did not work even after restart. I am not able to run any snap app though able to install any apps.

The snapd service is also running. But still even after reboot, the problem remains the same.

Solution

I suggest you to try reinstalling the package hello and then run:

sudo snap run hello

If this does not work, you should try reinstalling Snap and refreshing the snap core using:

sudo snap refresh core

Comments

[undsoft]

Snapd is pre-installed on 16.04. The fact you installed it and it doesn't work suggests you are running a non standard build of Ubuntu with a non-ubuntu kernel. What's the output of 'snap version'

[fsevenm]

sudo snap run app_name work for me

[Chan Kim]

hi, I installed cmake using snap. So I can run 'snap run cmake' but not just 'cmake'. Many install scripts are provided to use command 'cmake'. So I made an alias (alias cmake='snap run cmake'). Is this the way people use applications installed by snap?