Apt-get :: apt-get install iptables

sudo apt-get install iptables
Reading Package Lists... Done
Building Dependency Tree... Done
The following extra packages will be installed:
e2fslibs e2fsprogs libblkid1 libc6 libcomerr2 libss2 libuuid1
Suggested packages:
gpart e2fsck-static glibc-doc
The following NEW packages will be installed:
e2fslibs iptables libcomerr2 libss2 libuuid1
The following packages will be upgraded
e2fsprogs libblkid1 libc6
3 upgraded, 5 newly installed, 0 to remove and 140 not upgraded.
Need to get 0B/5870kB of archives.
After unpacking 2441kB disk space will be freed.
Do you want to continue? [Y/n] y
E: This installation run will require temporarily removing the essential package e2fsprogs due to a Conflicts/Pre-Depends loop. This is often bad, but if you really want to do it, activate the APT::Force-LoopBreak option.
E: Internal Error, Could not early remove e2fsprogs

PS: i did apt-get update
what should i do ?

iptables.dsl from the system repositories

Thanx!
But i am still getting this error message, even if i try install fail2ban, python and etc.

E: This installation run will require temporarily removing the essential package e2fsprogs due to a Conflicts/Pre-Depends loop. This is often bad, but if you really want to do it, activate the APT::Force-LoopBreak option.
E: Internal Error, Could not early remove e2fsprogs

run apt-get -f install

thanx, but i already tried apg-get -f install
no result... the same error =(

Next Page...
original here.