package mrtg 2.16.1-2ubuntu1 failed to install/upgrade: Unterprozess post-installation script gab den Fehlerwert 1 zur?ck

Binary package hint: mrtg

i was installing some packages for mrtg and snmp and answered the question for configuring '/etc/mrtg.cfg' twice with 'no' and the third time with 'yes'. Then the error was reported

ProblemType: Package
Architecture: i386
DistroRelease: Ubuntu 8.10
ErrorMessage: Unterprozess post-installation script gab den Fehlerwert 1 zurück
NonfreeKernelModules: fglrx
Package: mrtg 2.16.1-2ubuntu1
SourcePackage: mrtg
Title: package mrtg 2.16.1-2ubuntu1 failed to install/upgrade: Unterprozess post-installation script gab den Fehlerwert 1 zurück
Uname: Linux 2.6.27-12-generic i686