=> apt-get install postgresql-9.3
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  postgresql-client-9.3
Suggested packages:
  oidentd ident-server locales-all postgresql-doc-9.3
The following NEW packages will be installed:
  postgresql-9.3 postgresql-client-9.3
0 upgraded,2 newly installed,0 to remove and 700 not upgraded.
Need to get 8,944 kB of archives.
After this operation,23.6 MB of additional disk space will be used.
Do you want to continue [Y/n]? Y
Get:1 http://apt.postgresql.org/pub/repos/apt/ lucid-pgdg/main postgresql-client-9.3 amd64 9.3.2-1.pgdg10.4+1 [2,186 kB]
Get:2 http://apt.postgresql.org/pub/repos/apt/ lucid-pgdg/main postgresql-9.3 amd64 9.3.2-1.pgdg10.4+1 [6,758 kB]
Fetched 8,944 kB in 6s (1,294 kB/s)
Selecting prevIoUsly unselected package postgresql-client-9.3.
(Reading database ... 48797 files and directories currently installed.)
Unpacking postgresql-client-9.3 (from .../postgresql-client-9.3_9.3.2-1.pgdg10.4+1_amd64.deb) ...
Selecting prevIoUsly unselected package postgresql-9.3.
Unpacking postgresql-9.3 (from .../postgresql-9.3_9.3.2-1.pgdg10.4+1_amd64.deb) ...
Setting up postgresql-client-9.3 (9.3.2-1.pgdg10.4+1) ...
update-alternatives: error: alternative pg_basebackup.1.gz can't be slave of psql.1.gz: it is a slave of postmaster.1.gz
dpkg: error processing postgresql-client-9.3 (--configure):
 subprocess installed post-installation script returned error exit status 2
No apport report written because MaxReports is reached already
                                                              dpkg: dependency problems prevent configuration of postgresql-9.3:
 postgresql-9.3 depends on postgresql-client-9.3; however:
  Package postgresql-client-9.3 is not configured yet.
dpkg: error processing postgresql-9.3 (--configure):
 dependency problems - leaving unconfigured
No apport report written because MaxReports is reached already
                                                              Errors were encountered while processing:
 postgresql-client-9.3
 postgresql-9.3
E: Sub-process /usr/bin/dpkg returned an error code (1)

我一直在谷歌搜索两个小时没有解决问题.为什么会发生这种情况,我该如何解决？