Failed to evaluate groovy script #2968

I get error messages while executing the scripts but do not understand why


import com.pmease.quickbuild.Context;
String fileNameToTest = configuration.workspaceDir +"/" +configuration.parent.name +"/" + configuration.name + "/target/split-packages.log";
Context.getLogger().debug("fileNameToTest  = " + fileNameToTest);
File file = new File( fileNameToTest);
if(file.exists())
{
Context.getLogger().debug("fileNameToTest  = " + fileNameToTest + " exists");
}


23:17:26,630 ERROR - Step 'master>Script-FileExist' is failed: Failed to evaluate below expression:
mvel:import com.pmease.quickbuild.Context;
String fileNameToTest = configuration.workspaceDir +"/" +configuration.parent.name +"/" + configuration.name + "/target/split-packages.log";
Context.getLogger().debug("fileNameToTest = " + fileNameToTest);
File file = new File( fileNameToTest);
if(file.exists())
{
Context.getLogger().debug("fileNameToTest = " + fileNameToTest + " exists");
}
23:17:26,630 TRACE - Stack trace for the failure
    com.pmease.quickbuild.QuickbuildException: Failed to evaluate below expression:
    mvel:import com.pmease.quickbuild.Context;
    String fileNameToTest = configuration.workspaceDir +"/" +configuration.parent.name +"/" + configuration.name + "/target/split-packages.log";
    Context.getLogger().debug("fileNameToTest = " + fileNameToTest);
    File file = new File( fileNameToTest);
    if(file.exists())
    {
    Context.getLogger().debug("fileNameToTest = " + fileNameToTest + " exists");
    } 
        at com.pmease.quickbuild.util.ExceptionUtils.wrapException(ExceptionUtils.java:89) 
        at com.pmease.quickbuild.DefaultScriptEngine.evaluate(DefaultScriptEngine.java:94) 
        at com.pmease.quickbuild.plugin.basis.ScriptStep.run(ScriptStep.java:47) 
        at com.pmease.quickbuild.plugin.basis.ScriptStep$$EnhancerByCGLIB$$6ad2d3b7.CGLIB$run$0(<generated>) 
        at com.pmease.quickbuild.plugin.basis.ScriptStep$$EnhancerByCGLIB$$6ad2d3b7$$FastClassByCGLIB$$a34e2138.invoke(<generated>) 
        at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:215) 
        at com.pmease.quickbuild.DefaultScriptEngine$Interpolator.intercept(DefaultScriptEngine.java:273) 
        at com.pmease.quickbuild.plugin.basis.ScriptStep$$EnhancerByCGLIB$$6ad2d3b7.run(<generated>) 
        at com.pmease.quickbuild.stepsupport.Step.execute(Step.java:539) 
        at com.pmease.quickbuild.stepsupport.StepExecutionJob.executeStepAwareJob(StepExecutionJob.java:30) 
        at com.pmease.quickbuild.stepsupport.StepAwareJob.executeBuildAwareJob(StepAwareJob.java:45) 
        at com.pmease.quickbuild.BuildAwareJob.execute(BuildAwareJob.java:60) 
        at com.pmease.quickbuild.grid.GridJob.run(GridJob.java:73) 
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) 
        at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) 
        at java.util.concurrent.FutureTask.run(Unknown Source) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
        at java.lang.Thread.run(Unknown Source) 
    Caused by: [Error: unknown class or illegal statement: org.mvel2.ParserContext@25f3b681]
    [Near : {... ile file = new File( fileNameT ....}]
     ^
    [Line: 1, Column: 256] 
        at org.mvel2.compiler.AbstractParser.procTypedNode(AbstractParser.java:1405) 
        at org.mvel2.compiler.AbstractParser.nextToken(AbstractParser.java:766) 
        at org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:118) 
        at org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:65) 
        at org.mvel2.MVEL.compileExpression(MVEL.java:886) 
        at org.mvel2.MVEL.compileExpression(MVEL.java:891) 
        at org.mvel2.MVEL.compileExpression(MVEL.java:797) 
        at com.pmease.quickbuild.plugin.basis.BasisPlugin$26.evaluate(BasisPlugin.java:275) 
        at com.pmease.quickbuild.DefaultScriptEngine.evaluate(DefaultScriptEngine.java:88) 
        ... 17 more