2
當我嘗試導入使用gpg2我很好，出口gpg1鍵，公共密鑰導入工作正常：gpg2導入失敗（GPG 2.1.15，Ubuntu的17.10）
gpg --import /path/to/publickey.gpg
gpg: directory '/home/me/.gnupg' created
gpg: new configuration file '/home/me/.gnupg/dirmngr.conf' created
gpg: new configuration file '/home/me/.gnupg/gpg.conf' created
gpg: keybox '/home/me/.gnupg/pubring.kbx' created
gpg: /home/me/.gnupg/trustdb.gpg: trustdb created
gpg: key ABCDEF1234567890: public key "Me <[email protected]>" imported
gpg: Total number processed: 1
gpg: imported: 1
但進口的祕密（：使用--allow-secret-key-import時相同的結果注）：關鍵的失敗
gpg --import /path/to/secretkey.gpg
gpg: key ABCDEF1234567890: "Me <[email protected]>" not changed
gpg: key ABCDEF1234567890/ABCDEF1234567890: error sending to agent: No such file or directory
gpg: error building skey array: No such file or directory
gpg: Total number processed: 1
gpg: unchanged: 1
gpg: secret keys read: 1
我對這個（在Ubuntu 17.04燦爛）：
gpg --version
gpg: WARNING: unsafe permissions on homedir '/home/me/.gnupg'
gpg (GnuPG) 2.1.15
libgcrypt 1.7.6-beta
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://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: /home/me/.gnupg
Supported algorithms:
Pubkey: RSA, ELG, DSA, ECDH, ECDSA, EDDSA
Cypher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH,
CAMELLIA128, CAMELLIA192, CAMELLIA256
Hash: SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2
完全相同的導入步驟工作正常，如果我嘗試使用gpg 1.4.21（在同一臺機器上，可以通過sudo apt-get install gnupg1獲得）。