Extension API internal error: org.powermock.api.extension.reporter.MockingFrameworkReporterFactoryImpl
<p>I'm trying to write a unit test using PowerMockRunner but I got the following error:</p>

<blockquote>
  <p>java.lang.IllegalStateException: Extension API internal error:
  org.powermock.api.extension.reporter.MockingFrameworkReporterFactoryImpl
  could not be located in classpath.    at
  org.powermock.tests.utils.impl.AbstractTestSuiteChunkerImpl.getFrameworkReporterFactory(AbstractTestSuiteChunkerImpl.java:190)
    at
  org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.getMockingFrameworkReporter(JUnit4TestSuiteChunkerImpl.java:140)
    at
  org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:119)
    at
  org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
    at
  org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59)
    at
  org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
    at
  org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at
  org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at
  org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
    at
  org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at
  org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)</p>
</blockquote>

<p>I've checked all the dependencies and it's ok, do I need somehthing else?</p>