Comment 3 for bug 1713194

i just surfer in google and gor the solution.

Before the problem araised, the net-snmp-5.7.3, snmp-mibs-downloader and snmpd were already downloaded by me.
At this point of time, the libraries which will be used by snmpd are installed at two locations "/usr/lib/x86_64-linux-gnu/" and "/usr/local/lib". when I tried to start the snmpd, as the libraries were at two locations, snmpd service is confused which location of libraries to use.. Thus I have to remove the oldest libraries installed among them to make it work.

To check if you have the libraries at two locations use "find /usr/ -name libnetsnmp*" command on terminal.
If you find 'libnetsnmp-' files on both the above mentioned locations,
remove the oldest libs (in my case) using: "sudo rm /usr/local/lib/libnetsnmp*"
This will solve the problem of snmpd to start.