dpkg --purge libdps1
(Reading database ... 
dpkg: serious warning: files list file for package `libxrandr2' missing, assuming package has no files currently installed.

dpkg: serious warning: files list file for package `libxtrap6' missing, assuming package has no files currently installed.

dpkg: serious warning: files list file for package `libxmu6' missing, assuming package has no files currently installed.

dpkg: serious warning: files list file for package `libxtst6' missing, assuming package has no files currently installed.

dpkg: serious warning: files list file for package `libxt6' missing, assuming package has no files currently installed.
32912 files and directories currently installed.)
Removing libdps1 ...
dpkg (subprocess): unable to execute post-removal script: Exec format error
dpkg: error processing libdps1 (--purge):
 subprocess post-removal script returned error exit status 2
Errors were encountered while processing:
 libdps1