kristianf@kflaptop ~ $ pkill -9 scdaemon
kristianf@kflaptop ~ $ pkill -9 gpg-agent
kristianf@kflaptop ~ $ gpg --version
gpg (GnuPG) 2.1.10-beta213
libgcrypt 1.7.0-beta284
NOTE: THIS IS A DEVELOPMENT VERSION!
It is only intended for test purposes and should NOT be
used in a production environment or with production keys!
Copyright (C) 2015 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Home: ~/.gnupg
Supported algorithms:
Pubkey: RSA, ELG, DSA, ECDH, ECDSA, EDDSA
Cipher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH,
        CAMELLIA128, CAMELLIA192, CAMELLIA256
Hash: SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2
kristianf@kflaptop ~ $ echo "test" | gpg -vv -u 0x250B7AFED6379D85!
gpg: NOTE: THIS IS A DEVELOPMENT VERSION!
gpg: It is only intended for test purposes and should NOT be
gpg: used in a production environment or with production keys!
gpg: no valid OpenPGP data found.
gpg: processing message failed: Unknown system error