Remove Fern totally - Githubissues

What steps will reproduce the problem?
1.I installed Fern from downloaded package on BT 5 r2.
2.In BT 5 r3, it comes among the distribution upgrade applications.
3."dist-upgrade" can not remove it and reinstall it for BT 5 r3.

What is the expected output? What do you see instead?

root@bt:~# sudo apt-get purge fern-wifi-cracker
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libqwt5-qt4 libgconfmm-2.6-1c2
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
  fern-wifi-cracker*
0 upgraded, 0 newly installed, 1 to remove and 1 not upgraded.
1 not fully installed or removed.
After this operation, 3,514kB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 291882 files and directories currently installed.)
Removing fern-wifi-cracker ...
/var/lib/dpkg/info/fern-wifi-cracker.prerm: line 2: exit0: command not found
dpkg: error processing fern-wifi-cracker (--purge):
 subprocess installed pre-removal script returned error exit status 127
Errors were encountered while processing:
 fern-wifi-cracker
localepurge: Disk space freed in /usr/share/locale: 0 KiB
localepurge: Disk space freed in /usr/share/man: 0 KiB
localepurge: Disk space freed in /usr/share/gnome/help: 0 KiB
localepurge: Disk space freed in /usr/share/omf: 0 KiB
localepurge: Disk space freed in /usr/share/doc/kde/HTML: 0 KiB

Total disk space freed by localepurge: 0 KiB

E: Sub-process /usr/bin/dpkg returned an error code (1)
root@bt:~# sudo apt-get remove fern-wifi-cracker
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libqwt5-qt4 libgconfmm-2.6-1c2
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
  fern-wifi-cracker
0 upgraded, 0 newly installed, 1 to remove and 1 not upgraded.
1 not fully installed or removed.
After this operation, 3,514kB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 291882 files and directories currently installed.)
Removing fern-wifi-cracker ...
/var/lib/dpkg/info/fern-wifi-cracker.prerm: line 2: exit0: command not found
dpkg: error processing fern-wifi-cracker (--remove):
 subprocess installed pre-removal script returned error exit status 127
Errors were encountered while processing:
 fern-wifi-cracker
E: Sub-process /usr/bin/dpkg returned an error code (1)

What version of the product are you using? On what operating system?

Please provide any additional information below.

Original issue reported on code.google.com by ciaw...@gmail.com on 3 Feb 2013 at 12:17

New installation of Lubuntu 11.10
fern 1.6

getting similar errors as above

ubuntu@ubuntu:~/Downloads$ sudo dpkg -i Fern-Wifi-Cracker_1.6_all.deb
Selecting previously deselected package fern-wifi-cracker.
(Reading database ... 122069 files and directories currently installed.)
Preparing to replace fern-wifi-cracker 1.6 (using 
Fern-Wifi-Cracker_1.6_all.deb) ...
dpkg (subprocess): unable to execute old pre-removal script 
(/var/lib/dpkg/info/fern-wifi-cracker.prerm): Exec format error
dpkg: warning: subprocess old pre-removal script returned error exit status 2
dpkg - trying script from the new package instead ...
dpkg (subprocess): unable to execute new pre-removal script 
(/var/lib/dpkg/tmp.ci/prerm): Exec format error
dpkg: error processing Fern-Wifi-Cracker_1.6_all.deb (--install):
 subprocess new pre-removal script returned error exit status 2
Errors were encountered while processing:
 Fern-Wifi-Cracker_1.6_all.deb

Original comment by paul.haz...@gmail.com on 2 May 2013 at 1:55

0x90 / fern-wifi-cracker

Remove Fern totally #54