heu question con je veux desintaller un rpm mais j'y arrive pas

:
[root@localhost jackosking]# rpm -i xmule-1.4.0-fr1.i386.rpm
warning: xmule-1.4.0-fr1.i386.rpm: V3 DSA signature: NOKEY, key ID e42d547b
package xmule-1.4.0-fr1 is already installed
[root@localhost jackosking]# rpm -e xmule-1.4.0-fr1.i386.rpm
error: package xmule-1.4.0-fr1.i386.rpm is not installed