Not able to install 'slack' through snap

While installing slack from snap store using the command line (sudo snap install slack --classic), I get the following errors. Please help me resolve this.

 error: cannot perform the following tasks: - Setup snap "slack" (49) security profiles (cannot setup profiles for snap "slack": cannot load apparmor profiles: exit status 1 apparmor_parser output: AppArmor parser error for /var/lib/snapd/apparmor/profiles/snap-update-ns.slack in /var/lib/snapd/apparmor/profiles/snap-update-ns.slack at line 8: Could not open 'tunables/global'
AppArmor parser error for /var/lib/snapd/apparmor/profiles/snap.slack.slack in /var/lib/snapd/apparmor/profiles/snap.slack.slack at line 2: Could not open 'tunables/global' )

1

1 Answer

There is a problem with AppArmor. Since AppArmor is installed by default, you need to remove and reinstall its profiles:

sudo apt purge apparmor-profiles
sudo apt install apparmor-profiles

Then you can snap install the slack again.

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