How did I fix «gnupg, gnupg2 and gnupg1 do not seem to be installed» on Debian 10?

Unix Debian
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apt-get install gnupg

stackoverflow.com/a/50870265

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How solve this ?

#0 0.257 E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation
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I recieve it even after installing it : apt-get update && apt-get install -y gnupg2 ?

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Run the command from my solution (gnupg instead of gnupg2 and without -y) and carefully check the ouput.