[ndnSIM] receive zero for cacheHit value

[Zeinab Rezaiefar]

 Dear Narges ,Thanks you so much for your reply. However, after I have changed:  ndn::CsTracer::InstallAll("cs-simple2-trace.txt", Seconds(1)); to ndn::CsTracer::InstallAll("cs-simple2-trace.txt", Seconds(0.01)); still I have received zero for cache hit value. I think this function means in the interval defined with second() (for example during 1 second) how many times hash misses or hash hits has happened.  if it does not mind, may I know that you solve this problem or not.thanks in advancebest regards 
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