错误：cucumber.runtime.CucumberException：未找到后端。请确保您的 CLASSPATH 中有后端模块

Question

如何解决使用 java cucumber 运行 API 测试用例时发现的以下问题。以前它运行良好。目前在不做任何改变的情况下遇到问题。我尝试更改 cucumber-java 版本。仍然遇到同样的错误。

cucumber.runtime.CucumberException: No backends were found. Please make sure you have a backend module on your CLASSPATH.
    at cucumber.runtime.Runtime.<init>(Runtime.java:81)
    at cucumber.runtime.Runtime.<init>(Runtime.java:70)
    at cucumber.runtime.Runtime.<init>(Runtime.java:66)
    at com.github.mkolisnyk.cucumber.runner.ExtendedCucumber.createRuntime(ExtendedCucumber.java:92)
    at com.github.mkolisnyk.cucumber.runner.ExtendedCucumber.<init>(ExtendedCucumber.java:51)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
    at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:29)
    at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:21)
    at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
    at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:26)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createUnfilteredTest(JUnit4TestLoader.java:90)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:76)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:49)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:513)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:756)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:452)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)