apt-get install libxrandr2
Reading Package Lists... Done
Building Dependency Tree... Done
The following packages will be REMOVED:
  libdps1
The following packages will be upgraded:
  libxrandr2
1 upgraded, 0 newly installed, 1 to remove and 20 not upgraded.
4 not fully installed or removed.
Need to get 0B/172kB of archives.
After unpacking 651kB disk space will be freed.
Do you want to continue? [Y/n] y
(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 (--remove):
 subprocess post-removal script returned error exit status 2
Errors were encountered while processing:
 libdps1
E: Sub-process /usr/bin/dpkg returned an error code (1)