当我尝试执行时sudo apt-get upgrade，出现以下错误，
Errors were encountered while processing:
cups-daemon
做sudo dpkg --configure -a给予，
dpkg: dependency problems prevent configuration of cups-daemon:
cups-daemon depends on libcups2 (= 2.3.1-9ubuntu1.2); however:
Version of libcups2:amd64 on system is 2.3.1-9ubuntu1.1.
dpkg: error processing package cups-daemon (--configure):
dependency problems - leaving unconfigured
我怎么解决这个问题？