Hi Ahendrix, Thank you for your reply! :) Actually, I have justre-installed everything with new Lubuntu and ROS again; and they issued the error when I executed the command
$sudo apt-get install python-rosinstall -f
Reading package lists... Done Building dependency tree
Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded. 2 not fully installed or removed. After this operation, 0 B of additional disk space will be used. dpkg: dependency problems prevent configuration of python-wstool: python-wstool depends on python:any (>= 2.7.1-0ubuntu2). dpkg: error processing python-wstool (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates its a followup error from a previous failure. dpkg: dependency problems prevent configuration of python-rosinstall: python-rosinstall depends on python-wstool (>= 0.1.1); however: Package python-wstool is not configured yet. dpkg: error processing python-rosinstall (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates its a followup error from a previous failure. Errors were encountered while processing: python-wstool python-rosinstall E: Sub-process /usr/bin/dpkg returned an error code (1)
Thank!