I have been playing around with Selenium Cucumber and came across this error message:

Type mismatch: Cannot convert from Class StepDefinition to Class?extends Runner

and here is my code:

package com.cucumber.JUnit;

import cucumber.api.CucumberOptions;
import cucumber.api.junit.Cucumber;
import org.junit.runner.RunWith;

import com.cucumber.steps.StepDefinition;

  format = { "pretty", "html:report/test-report" },
  features = { "src/test/resources/sample.feature" },
  glue = { "com.cucumber.steps.StepDefinition" }

public class SampleCucumberJUnitRunner {
  //Note: As with all Cucumber tests, the .feature file(s) will define what 
will actually run.

Unable to understand the source of error even though I have imported the class correctly. Am I missing something???

Any help would be appreciable. Thanks in advance!!

  • Getting this error - Type mismatch: cannot convert from Class<Cucumber> to Class<? extends Runner> Below is my code - package StepDefinitions; import org.junit.runner.RunWith; import io.cucumber.junit.Cucumber; import io.cucumber.junit.CucumberOptions; @RunWith(Cucumber.class) @CucumberOptions(features = "src/test/resources/Features", glue = {"StepDefinitions"}) public class TestRunner { } @Someone can help me in this error?
    – user57773
    Commented Dec 28, 2023 at 16:56

1 Answer 1


Change @RunWith(StepDefinition.class) to @RunWith(Cucumber.class).

The Cucumber runner needs to run with a class that extends Runner.class; StepDefinition.class does not extends Runner.class.

  • Does this answer your question, or do you need something else?
    – Marit
    Commented Feb 4, 2018 at 6:13

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