[Bug] Yarn error when trying to install plugin

[aso824]

• Insomnia Version: 6.6.2
• Operating System: Linux Mint 19 (64-bit)

Details

When I open Plugins tab in Preferences
And I type anything in box near button "Install Plugin", then I press that button
Then red box with error is displayed:

Yarn error /snap/insomnia/32/insomnia: error while loading shared libraries: libgtk-3.so.0: cannot open shared object file: No such file or directory

And I see in DevTools only this new line:

[plugins] Fetching module info from npm

Insomnia is installed via Snap. Only npm is installed in OS.

[gschier]

Looks like you're experiencing the same thing as in #905

The workaround, for now, is to manually install the plugin within the plugins folder using NPM.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[asyba]

Similar issue:

[DamienGarrido]

Similar issue on Ubuntu Focal :
Error: Yarn error /snap/insomnia/166/insomnia: error while loading shared libraries: libnss3.so: cannot open shared object file: No such file or directory

[Nditah]

Error Installing Plugin in Insomnia

If you installed insomnia via snap, you will encounter this error if you try installing plugin.

SOLUTION

Remove insomnia
snap remove insomnia

Then

# Add to sources
echo "deb [trusted=yes arch=amd64] https://download.konghq.com/insomnia-ubuntu/ default all" \
    | sudo tee -a /etc/apt/sources.list.d/insomnia.list

# Refresh repository sources and install Insomnia
sudo apt-get update
sudo apt-get install insomnia