Comment 31 for bug 321287

On Ubuntu 12.04, I was having same issue. By changing group and owner of `.gnupg/*` resolved this issue for me:

vishal@vishal:~$ ls -la | grep .gnupg
drwx------ 2 root root 4096 Apr 23 18:12 .gnupg
vishal@vishal:~$ sudo chown -R vishal .gnupg
vishal@vishal:~$ sudo chgrp -R vishal .gnupg
vishal@vishal:~$ ls -la .gnupg
total 32
drwx------ 2 vishal vishal 4096 Apr 23 18:12 .
drwxr-xr-x 135 vishal vishal 4096 Aug 16 09:07 ..
-rw------- 1 vishal vishal 9398 Oct 11 2011 gpg.conf
-rw------- 1 vishal vishal 1637 Apr 23 18:12 pubring.gpg
-rw------- 1 vishal vishal 1637 Apr 23 18:12 pubring.gpg~
-rw------- 1 vishal vishal 0 Oct 11 2011 secring.gpg
-rw------- 1 vishal vishal 1200 Apr 23 18:12 trustdb.gpg

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Now I can safely create PGP key.