Serenity Report error: DataTables warning: table id=scenario-results - Incorrect column count. For more information about this error, please see http://datatables.net/tn/18

[shashiyadavnitn]

I am doing parallel execution but the report generated is having issues

[shashiyadavnitn]

@wakaleo help here please

[wakaleo]

what version of Serenity are you using?

[shashiyadavnitn]

using below versions
<serenity.version>4.1.12</serenity.version>
<serenity.maven.version>4.1.12</serenity.maven.version>
<serenity.cucumber.version>4.1.12</serenity.cucumber.version>
<junit-vintage-engine.version>5.10.2</junit-vintage-engine.version>
<junit-platform-suite.version>1.10.2</junit-platform-suite.version>
<cucumber-junit-platform-engine.version>7.16.1</cucumber-junit-platform-engine.version>

[wakaleo]

Can you try with the latest version?

[shashiyadavnitn]

ok let me try with 4.2.6

[wakaleo]

The latest current version is 4.2.16 (https://search.maven.org/search?q=serenity-core)

[shashiyadavnitn]

I was referring to below link for latest stable version and it had 4.2.6 so I thought of using that.I will try with both and see how it goes
https://github.com/serenity-bdd/serenity-core

[shashiyadavnitn]

@wakaleo tried with 4.2.16 and i am getting same error

[wakaleo]

Since this is not a general issue, it may be related to your project setup or your tests. Look into the HTML page and look at the table data to see if you see anything odd. If you need project-specific help, we can do that as part of a commercial support package.

[shashiyadavnitn]

errorLog.txt
attaching log I see below error in console

• Failed to generate report - java.util.concurrent.ExecutionException: java.lang.RuntimeException: Failed to merge template: Failed to process FreeMarker template
  durationMillis must not be negative

[shashiyadavnitn]

this is an issue with the report generation in parallel....if I use an older version of serenity 3.x.x and run sequential reports generating perfect

[wakaleo]

That's an interesting detail. It looks like you have negative durations in your tests, which I have never come across before. Have a look at the json files of your test outcomes, and try running a clean test run (mvn clean verify) to see if you get the same results.

[wakaleo]

Can you post the json test outcome file from target/site/serenity that corresponds to this test?

[shashiyadavnitn]

This was happening because I had duplicate scenarios and feature names.Updating that and using Serenity 4.1.20 resolved the issue