pure-ftpd crashes if removed and then reinstalled

[nils45324]

Binary package hint: pure-ftpd

hello,
i could not get pure-ftpd work,so i installed vsftpd (since i didn't know how to remove a package completely)
after that,it removed pure-ftpd and installed vsftpd

then i tried to reinstall pure-ftpd and here is the screen shot

The following packages will be REMOVED:
  vsftpd
The following NEW packages will be installed:
  pure-ftpd
0 upgraded, 1 newly installed, 1 to remove and 0 not upgraded.
Need to get 0B/151kB of archives.
After this operation, 65.5kB of additional disk space will be used.
Do you want to continue [Y/n]? y
(Reading database ... 109834 files and directories currently installed.)
Removing vsftpd ...
 * Stopping FTP server: vsftpd [ OK ]
Processing triggers for man-db ...
Selecting previously deselected package pure-ftpd.
(Reading database ... 109789 files and directories currently installed.)
Unpacking pure-ftpd (from .../pure-ftpd_1.0.21-11.4ubuntu1_i386.deb) ...
Setting up pure-ftpd (1.0.21-11.4ubuntu1) ...
Installing new version of config file /etc/ftpusers ...
Starting ftp server: /usr/sbin/pure-ftpd-wrapper: Invalid configuration file /etc/pure-ftpd/conf/PAMAuthentication~: No corresponding directive
invoke-rc.d: initscript pure-ftpd, action "start" failed.
dpkg: error processing pure-ftpd (--configure):
 subprocess post-installation script returned error exit status 2
Errors were encountered while processing:
 pure-ftpd
E: Sub-process /usr/bin/dpkg returned an error code (1)

I got a black screen pop up showing a crash report.

ProblemType: Package
Architecture: i386
DistroRelease: Ubuntu 9.04
ErrorMessage: subprocess post-installation script returned error exit status 2
Package: pure-ftpd 1.0.21-11.4ubuntu1
SourcePackage: pure-ftpd
Title: package pure-ftpd 1.0.21-11.4ubuntu1 failed to install/upgrade: subprocess post-installation script returned error exit status 2
Uname: Linux 2.6.28-15-generic i686

[Mark Stosberg (markstos)]

This bug can be closed. It was a reported against an Ubuntu release which is no longer supported.