apt-getでgmrunをインストールする際にエラーが発生しました。

$ sudo apt-get install gmrun
Reading package lists... Done
Building dependency tree       
Reading state information... Done
gmrun is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 18 not upgraded.
2 not fully installed or removed.
After this operation, 0B of additional disk space will be used.
Setting up monodoc-base (2.4.4~svn151842-1ubuntu4) ...

Processing triggers for monodoc-base ...
/usr/bin/update-monodoc: line 3: [: argument expected
generating monodoc search index...
/usr/bin/update-monodoc: line 9: monodoc: command not found
dpkg: error processing monodoc-base (--configure):
 subprocess installed post-installation script returned error exit status 127
dpkg: dependency problems prevent configuration of monodoc-http:
 monodoc-http depends on monodoc-base; however:
  Package monodoc-base is not configured yet.
dpkg: error processing monodoc-http (--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:
 monodoc-base
 monodoc-http
E: Sub-process /usr/bin/dpkg returned an error code (1)