No valid encryption keys - PubKeyAlgoDSA

[MonikaBrzica]

I got this error with my public key whic has PublicKeyAlgorithm type = PubKeyAlgoDSA:

"could not encrypt message: gopenpgp: error in encrypting asymmetrically: openpgp: invalid argument: cannot encrypt a message to key id xxx because it has no valid encryption keys"

Since you have this method:

 func (pka PublicKeyAlgorithm) CanEncrypt() bool {
	switch pka {
	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoElGamal, PubKeyAlgoECDH, PubKeyAlgoX25519, PubKeyAlgoX448:
		return true
	}
	return false
}

and it returns false to me.

I am interested in why DSA is an invalid key algorithm type, even though it is in the list of all key algorithms. Is it possible to somehow set the configuration so that my "outdated" key is valid even with the new version v3 ?