Hi

I have run into this error:

W: Duplicate sources.list entry http://apt.newrelic.com/debian/ newrelic/non-free amd64 Packages (/var/lib/apt/lists/apt.newrelic.comdebiandistsnewrelicnon-freebinary-amd64Packages)
W: Duplicate sources.list entry http://apt.newrelic.com/debian/ newrelic/non-free i386 Packages (/var/lib/apt/lists/apt.newrelic.comdebiandistsnewrelicnon-freebinary-i386Packages)
W: You may want to run apt-get update to correct these problems

I have run apt-get update but it dont fix the problem. What should i do? What fil should i edit?