pkg_delete yields 'no such package'

[Toan H. Le]

I installed FreeBSD for investigation purpose and reserve small hard disk
space for it. Partition comes to nearly full and I decide to delete some
'doc' packages.

Either I use 'pkg_delete xorg-docs' or 'pkg_delete xorg-docs-1.4.1',
pkg_delete yields the error of 'no such package'. Checking via 'pkg_info'
and 'pkg_version' confirms the packages xorg-docs-1.4.1 installed. I think I
did not use the wrong command.

Can anyone help me on this issue? I need to free some space to continue my
investigation.

-- 
Regards,

Toan H. Le