On Mon, 12 May 2008 21:53:51 +0100, "Thibault Langlois" tl@di.fc.ul.pt wrote:
A function with declared result type NIL returned: MD5:UPDATE-MD5-BLOCK.
[...]
I am using huchentoot (0.15.6) chunga (0.3.0) cl-base64 (3.3.2) cl-fad (0.6.2) and flexi-streams (0.14.0) with sbcl 1.0.9.
As MD5 is mentioned in your error message, the version of the MD5 library you're using might also be of interest. And, as Cyrus already said, a backtrace would help.