problem occurs after upgrading to lenny

["Pete Kay" <petedao@gmail.com>]

Hi, 

I tried to upgrade to Lenny because Lenny has the latest Lua 5.3 version, but after I did the upgrade, not only Lua 5.3 is not installed, but apt-get starting to pop up errors every time I use it:

ser:/home/anne# apt-get install lua50
Reading package lists... Done
Building dependency tree       
Reading state information... Done
lua50 is already the newest version.
The following packages were automatically installed and are no longer required:
  libpci2 libgail17 libgcj7-0 type-handling libsoup2.2-8 libwnck18
  libpoppler0c2 libdirectfb-0.9-25 libeel2-2.14 libiw28 libgucharmap4
  libmyspell3c2 libsnmp9 mkisofs libavahi-core4
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
5 not fully installed or removed.
After this operation, 0B of additional disk space will be used.
Setting up exim4-daemon-light (4.69-2+b1) ...
Starting MTA:exim: incompatible command-line options or arguments
invoke-rc.d: initscript exim4, action "start" failed.
dpkg: error processing exim4-daemon-light (--configure):
 subprocess post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of at:
 at depends on mail-transport-agent; however:
  Package mail-transport-agent is not installed.
  Package exim4-daemon-light which provides mail-transport-agent is not configured yet.
dpkg: error processing at (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of exim4:
 exim4 depends on exim4-daemon-light | exim4-daemon-heavy | exim4-daemon-custom; however:
  Package exim4-daemon-light is not configured yet.
  Package exim4-daemon-heavy is not installed.
  Package exim4-daemon-custom is not installed.
dpkg: error processing exim4 (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of bsd-mailx:
 bsd-mailx depends on exim4 | mail-transport-agent; however:
  Package exim4 is not configured yet.
  Package mail-transport-agent is not installed.
  Package exim4-daemon-light which provides mail-transport-agent is not configured yet.
dpkg: error processing bsd-mailx (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of mailx:
 mailx depends on bsd-mailx; however:
  Package bsd-mailx is not configured yet.
dpkg: error processing mailx (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 exim4-daemon-light
 at
 exim4
 bsd-mailx
 mailx
E: Sub-process /usr/bin/dpkg returned an error code (1)
ser:/home/anne# 


What is wrong?  How can I fix this?

Thanks
Pete