Comment 1 for bug 64261

What version of ubuntu are you using? What is the full error messages. Im on edgy and it installed fine here is the output:
gnomefreak@EdgyEft:~$ sudo apt-get install cl-split-sequence
Password:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libgsf-gnome-1-114 kde-style-lipstik python2.5 libxine-main1 python2.5-minimal
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  cl-asdf common-lisp-controller realpath
Recommended packages:
  sbcl lisp-compiler
The following NEW packages will be installed:
  cl-asdf cl-split-sequence common-lisp-controller realpath
0 upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
Need to get 89.4kB of archives.
After unpacking 582kB of additional disk space will be used.
Do you want to continue [Y/n]?
Get:1 http://archive.ubuntu.com edgy/universe cl-asdf 1.99-1 [47.6kB]
Get:2 http://archive.ubuntu.com edgy/main realpath 1.10 [6734B]
Get:3 http://archive.ubuntu.com edgy/universe common-lisp-controller 6.1 [30.3kB]
Get:4 http://archive.ubuntu.com edgy/universe cl-split-sequence 20050802-1 [4768B]
Fetched 89.4kB in 4s (20.7kB/s)
Preconfiguring packages ...
Selecting previously deselected package cl-asdf.
(Reading database ... 169934 files and directories currently installed.)
Unpacking cl-asdf (from .../cl-asdf_1.99-1_all.deb) ...
Selecting previously deselected package realpath.
Unpacking realpath (from .../realpath_1.10_i386.deb) ...
Selecting previously deselected package common-lisp-controller.
Unpacking common-lisp-controller (from .../common-lisp-controller_6.1_all.deb) ...
Selecting previously deselected package cl-split-sequence.
Unpacking cl-split-sequence (from .../cl-split-sequence_20050802-1_all.deb) ...
Setting up cl-asdf (1.99-1) ...

Setting up realpath (1.10) ...
Setting up common-lisp-controller (6.1) ...

Setting up cl-split-sequence (20050802-1) ...

gnomefreak@EdgyEft:~$