F5 analytics iApp on v14.1

I would dig into the script mentioned in the error message:

Script (/Common/analytics-send_stats1) generated this Tcl error:
(
script did not successfully complete: 
    (
    can't read "splunkdestinationip_withrd": no such variable
         while executing
        "string compare "$splunkdestinationip_withrd" "0" "

         ("Splunk" arm line 5)
         invoked from within
        "switch -- $format {
         "Splunk" -
         "F5 Analytics" {
         catch {exec /bin/gzip $filename$i$ext -f}
         ..."

         ("for" body line 4)
         invoked from within
        "for {set i 0} {$i <= $currentfile} {incr i} {
         set curl_response "fail"
         set ext ""
         switch -- $format {
         ..."

         line:2619
    )
)

Try to search where this variable ("splunkdestinationip_withrd") comes from. Maybe is generated during iApp configuration and you are missing it...

You could also modify the script to set the value manually and check what happens...

KR, Dario.