BIGIP DNS module iRules doesn't work

We are trying to add the below iRules (F5 Content pack for VMware logInsight) on our BIGIP VE(13.0)

=================================== iRule: logInsight_dns_response START ====================================

when DNS_RESPONSE { set client_addr [IP::client_addr] set dns_server_addr [IP::local_addr] set question_name [DNS::question name] set is_wideip [DNS::is_wideip [DNS::question name]] set answer [join [DNS::answer] ;]

set hsl [HSL::open -proto UDP -pool logInsight_pool_syslog]
HSL::send $hsl "<190>f5_irule=web_access_DNS_RESPONSE,src_ip=$client_addr,dns_server_ip=$dns_server_addr,question_name=$question_name,is_wideip=$is_wideip,answer=\"$answer\"\r\n"

}

=============================== iRule: logInsight_dns_response END ================================

But the BIGIP give us the error below:

01070151:3: Rule [/Common/logInsight_dns_response] error: /Common/logInsight_dns_response:4: error: [unknown event (DNS_RESPONSE)][when DNS_RESPONSE { set client_addr [IP::client_addr] set dns_server_addr [IP::local_addr] set question_name [DNS::question name] set is_wideip [DNS::is_wideip [DNS::question name]] set answer [join [DNS::answer] ;]

set hsl [HSL::open -proto UDP -pool logInsight_pool_syslog] HSL::send $hsl "<190>f5_irule=web_access_DNS_RESPONSE,src_ip=$client_addr,dns_server_ip=$dns_server_addr,question_name=$question_name,is_wideip=$is_wideip,answer=\"$answer\"\r\n" }]

We don't know what is going wrong.

Anybody can help?