Deepin has an old Snapd/Snap version (v2.37) that makes it impossible to install Snap Store, which requires at least Snap/Snapd version (v2.43).

After doing lots of trial and error, I have managed to upgrade Snapd/Snap on Deepin to the lastest supported version on Debian.

Just follow these steps and everything should be good to go.

Sorry I'm using English. I hope there are good translators out there to help you.

Step 1
Download the latest Snapd version for Debian
https://debian.pkgs.org/11/debian-main-amd64/snapd_2.49-1+deb11u1_amd64.deb.html

Step 2
Enable "apt" to download packages as root (use top answer)
https://askubuntu.com/questions/908800/what-does-this-apt-error-message-download-is-performed-unsandboxed-as-root

But I can explain it here too!

Just run the following two codes via terminal

sudo chown -Rv _apt:root /path/to/deb/location/ (make sure it's the correct path to where your Snapd/Snap .deb download file is stored e.g /home/DEEWINC/Downloads/)
sudo chmod -Rv 700 /path/to/deb/location/ (make sure it's the correct path to where your Snapd/Snap .deb download file is stored e.g /home/DEEWINC/Downloads/)

Step 3
Install Snapd downloaded in Step 1 (use top answer to install .deb files)
https://unix.stackexchange.com/questions/159094/how-to-install-a-deb-file-by-dpkg-i-or-by-apt

Example:

sudo apt install /home/DEEWINC/Desktop/snapd.deb (make sure it's the correct path to where your Snapd/Snap .deb download file is saved on your computer)

Step 4
Install Snap store by running
sudo snap install snap-store

I hope this works for you.

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With Love from **KENYA! **😃 😃 😃

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