how to resolve this?

[Yunjiao.Han]

java.lang.UnsupportedOperationException
        at net.grinder.scriptengine.groovy.junit.GrinderRunner.withBeforeProcess(GrinderRunner.java:268)
        at net.grinder.scriptengine.groovy.junit.GrinderRunner.classBlock(GrinderRunner.java:207)
        at net.grinder.scriptengine.groovy.junit.GrinderRunner.run(GrinderRunner.java:169)
        at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
        at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
        at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
        at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
        at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

[lopiter]

hi, did you include some library in lib path??

then, library that you include must not have junit dependency.

nGrinder can run correct, when use specify junit version.