// a segment (the important stuff) of the yum output:
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package net-snmp.x86_64 0:5.2.1.2-fc4.1 set to be updated
--> Running transaction check
--> Processing Dependency: net-snmp = 5.2.1-12 for package: net-snmp-libs
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Package net-snmp-libs.x86_64 0:5.2.1.2-fc4.1 set to be updated
--> Running transaction check
--> Processing Dependency: net-snmp = 5.2.1-12 for package: net-snmp-libs
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
--> Running transaction check
Error: Unable to satisfy dependencies
Error: Package net-snmp-libs needs net-snmp = 5.2.1-12, this is not available.
//the output of rpm -qa| grep net-snmp
[root@localhost SPECS]# rpm -qa|grep net-snmp
net-snmp-libs-(none):5.2.1-12.i386
net-snmp-(none):5.2.1-12.x86_64
net-snmp-libs-(none):5.2.1-12.x86_64