Splunk App for Jenkins : No result found in Test Analysis

[jessica_chen]

Hi , I am a beginner of Splunks.
I installed Splunk App for Jenkins 2.0.2 on Splunk Enterprise 7.3.0.
I found there was no result displayed on Test Analysis page of Splunk App for Jenkins.
And I am the test result had been send to Splunk.
I run a test Jenkins pipeline job like:

node("master"){
writeFile file:"test-results.xml", text:'''<?xml version="1.0" encoding="utf-8"?> '''
junit "test-results.xml" }

then I search with "index=jenkins* santiycheck" and 1 build_report was found successfully.

Is anyone can provide information why the test report cannot be shown on Test Analysis page?
Thanks very much for your help][1]