Adding ExtentCucumberFormatter plugin in testrunner file failed to create new TestNGCucumberRunner(this.getClass()); object

[jainamit1712]

This works well when i dont add "com.cucumber.listener.ExtentCucumberFormatter:target/cucumber-reports/report.html" plugin in my TestRunner file. But as soon as i add this plugin it failed to create this object testNGCucumberRunner = new TestNGCucumberRunner(this.getClass());

Could you please suggest what am i doing wrong here!

@CucumberOptions(features= {"src\test\resources\FunctionalTests"},
glue= {"stepDefinitions"},
plugin = {"pretty",
"html:target/html/",
"json:target/json/file.json",
"com.cucumber.listener.ExtentCucumberFormatter:target/cucumber-reports/report.html"

},
strict=false,
dryRun=false,
monochrome = true,
tags= "@test"
)

public class TestRunner{
private TestNGCucumberRunner testNGCucumberRunner;

@parameters({"browsername"})
@BeforeClass(alwaysRun = true)
public void setUpClass(String browsername) throws Exception {

testNGCucumberRunner = new TestNGCucumberRunner(this.getClass()); 
 Reporter.loadXMLConfig(new File("src\\test\\resources\\extent-config.xml"));

}

@test(groups = "cucumber", description = "Runs Cucumber Scenarios", dataProvider = "scenarios")
public void scenario(PickleWrapper pickle, FeatureWrapper cucumberFeature) throws Throwable {
testNGCucumberRunner.runScenario(pickle.getPickle());
}
@dataProvider
public Object[][] scenarios() {
return testNGCucumberRunner.provideScenarios();
}
@afterclass(alwaysRun = true)
public void tearDownClass() throws Exception{

testNGCucumberRunner.finish();
}