How to fix error: snap "package-name" is not installed in APT

First, check if the snap command is installed:

snap --version

If you get 'command not found', you need to install snapd first.

Install the snapd daemon using apt:

sudo apt update
sudo apt install snapd

After installation, you may need to restart your system or wait a few moments for snapd to fully initialize.

Use the snap find command to search for the correct package name:

snap find package-name

This will show you available packages matching your search. Make sure you use the exact name shown in the results.

Verify your system is 64-bit, as many modern snap packages only support 64-bit systems:

uname -m

If output is 'x86_64', you're on 64-bit. If it's 'i686', you're on 32-bit and may have limited snap package availability.

Install the package using the correct name from the snap find results:

snap install package-name

If the package requires classic mode (full system access), add the --classic flag:

snap install package-name --classic

Check the snap store page for the package to see if --classic is required.

If you continue experiencing issues, refresh the core snap package:

sudo snap refresh core

Then retry the installation of your desired package.