Remove Similar entries in a File

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I have a log file "logreport" that contains several lines as seen below:

04:20:00 /usr/lib/snmp/snmpdx: [ID 702911 daemon.error] Agent snmpd appeared dead but responded to ping
06:38:08 /usr/lib/snmp/snmpdx: [ID 702911 daemon.error] Agent snmpd appeared dead but responded to ping
07:11:05 /usr/lib/snmp/snmpdx: [ID 702911 daemon.error] Agent snmpd appeared dead but responded to ping

I would like to edit the report to remove entries that report duplicate events. I am trying to produce an output close to what is seen below:

04:20:00 /usr/lib/snmp/snmpdx: [ID 702911 daemon.error] Agent snmpd appeared dead but responded to ping
This Error was reproduced 2 times

Forum rules - no duplicate posts !!!

cat file1|sort|uniq -c | cut -f2