qubes-gpg-client-wrapper "not a gnupg executable" in icedove

[Anon]

I'm getting an error when using /usr/bin/qubes-gpg-client-wrapper in
enigmail settings. Enigmail/icedove indicates that the
qubes-gpg-client-wrapper is "not a gnupg executable."

Could someone point me in the right direction to make some progress?
Neither googling nor viewing the Split-GPG doc supply results for me.

Thank you.

[Andrew David Wong]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Did you make sure to set up the backend VM correctly following the
Split GPG instructions? Do you have the correct output for
`qubes-gpg-client -K` (listing secret keys in the backend VM), for
example?

- --
Andrew David Wong (Axon)
Community Manager, Qubes OS
https://www.qubes-os.org
-----BEGIN PGP SIGNATURE-----
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=4fK1
-----END PGP SIGNATURE-----