apt-get update komutu hatası

[yaşar tunçez <ytuncez@gmail.com>]

Merhaba,
apt-get update komutu verince aşağıdaki mesaj çıkıyor. Sorun ne olabilir acaba?
Teşekkürler.
debian:~# apt-get update
Hit http://ftp.tr.debian.org testing/main Packages
Hit http://ftp.tr.debian.org testing/main Release
Hit http://ftp.tr.debian.org testing/contrib Packages
Hit http://ftp.tr.debian.org testing/contrib Release
Hit http://ftp.tr.debian.org testing/non-free Packages
Hit http://ftp.tr.debian.org testing/non-free Release
Hit http://splashy.alioth.debian.org unstable/main Packages
Ign http://splashy.alioth.debian.org unstable/main Release
Hit http://splashy.alioth.debian.org unstable/main Sources
Ign http://splashy.alioth.debian.org unstable/main Release
Hit http://security.debian.org stable/updates/main Packages
Hit http://security.debian.org stable/updates/main Release
Get:1 ftp://ftp.tr.debian.org testing/main Packages [3430kB]
Hit ftp://ftp.tr.debian.org testing/main Release
Hit ftp://ftp.tr.debian.org testing/main Sources
Hit ftp://ftp.tr.debian.org testing/main Release
Fetched 3430kB in 2m44s (20.8kB/s)
Reading Package Lists... Done
W: Duplicate sources.list entry http://ftp.tr.debian.org testing/main
Packages ( /var/lib/apt/lists/ftp.tr.debian.org_debian_dists_testing_main_binary-i386_Packa
ges)
W: You may want to run apt-get update to correct these problems