Can't run even the simplest java script

Hi All,

I have VuGen 12.01 and cannot run even the simplest java script.  If I add a new script of type Java Vuser, I can compile it but running it fails with a popup that says "An error occurred."  Additionally, the VuGen log contains this:

2015-08-18 15:45:39,335 ExceptionFormatter [  1] ERROR - System.NullReferenceException: Object reference not set to an instance of an object.
   at HP.LR.Vugen.FrontEnd.DebuggerAddin.LogReplayLogController.DebugStarting(Object sender, EventArgs e) in e:\LT\LT-LR\win32_release\12.01.2079.0_clean\app\VuGen\FrontEnd\Current\CoreAddins\VuGenDebugger\Output\Controllers\LogReplayLogController.cs:line 193
   at System.EventHandler.Invoke(Object sender, EventArgs e)
   at HP.Utt.Debugger.UttDebuggerService.CallDebugStarting(Object sender, EventArgs e) in e:\LT\UTT\win32_release\12.01.1601.10\src\Infra\app\UttDebugger\UttDebuggerService.cs:line 338
   at HP.Utt.Debugger.UttDebugger.CallDebugStarting(EventArgs e) in e:\LT\UTT\win32_release\12.01.1601.10\src\Infra\app\UttDebugger\UttDebugger.cs:line 456
   at HP.Utt.Debugger.UttDebugger.<>c__DisplayClass22.<InvokeDebugStarting>b__21() in e:\LT\UTT\win32_release\12.01.1601.10\src\Infra\app\UttDebugger\UttDebugger.cs:line 416
   at ICSharpCode.SharpDevelop.Gui.WorkbenchSingleton.SafeThreadCall(Action method)
   at HP.Utt.Debugger.UttDebugger.InvokeDebugStarting(EventArgs e) in e:\LT\UTT\win32_release\12.01.1601.10\src\Infra\app\UttDebugger\UttDebugger.cs:line 414
   at HP.Utt.Debugger.UttDebugger.Start(ProcessStartInfo processStartInfo) in e:\LT\UTT\win32_release\12.01.1601.10\src\Infra\app\UttDebugger\UttDebugger.cs:line 292
   at HP.LR.Vugen.DebuggerBackend.VugenDebuggerUtilities.StartReplay(String usrFileName, String& mdrvCmdFileName, String replayResultName, Object extraData, Boolean saveBeforeReplay) in e:\LT\LT-LR\win32_release\12.01.2079.0_clean\app\VuGen\BackEnd\Current\Debugger\HP.LR.Vugen.DebuggerBackend\VugenDebuggerUtilities.cs:line 174
   at HP.LR.Vugen.FrontEnd.DebuggerAddin.Gui.ReplayOperations.StartReplay(Boolean pauseOnStart, String usrFileName, String replayResultName) in e:\LT\LT-LR\win32_release\12.01.2079.0_clean\app\VuGen\FrontEnd\Current\CoreAddins\VuGenDebugger\Gui\ReplayOperations.cs:line 92
   at HP.LR.Vugen.FrontEnd.DebuggerAddin.Gui.ReplayOperations.ExecuteReplay(Boolean pauseOnStart, Action`1 callback, CompilationResult compilationResult) in e:\LT\LT-LR\win32_release\12.01.2079.0_clean\app\VuGen\FrontEnd\Current\CoreAddins\VuGenDebugger\Gui\ReplayOperations.cs:line 158
2015-08-18 15:45:39,335 VUGEN         [  1] ERROR - Object reference not set to an instance of an object.
Exception Data&colon;
Object reference not set to an instance of an object.
Stack Trace:
   at HP.LR.Vugen.FrontEnd.DebuggerAddin.LogReplayLogController.DebugStarting(Object sender, EventArgs e) in e:\LT\LT-LR\win32_release\12.01.2079.0_clean\app\VuGen\FrontEnd\Current\CoreAddins\VuGenDebugger\Output\Controllers\LogReplayLogController.cs:line 193
   at System.EventHandler.Invoke(Object sender, EventArgs e)
   at HP.Utt.Debugger.UttDebuggerService.CallDebugStarting(Object sender, EventArgs e) in e:\LT\UTT\win32_release\12.01.1601.10\src\Infra\app\UttDebugger\UttDebuggerService.cs:line 338
   at HP.Utt.Debugger.UttDebugger.CallDebugStarting(EventArgs e) in e:\LT\UTT\win32_release\12.01.1601.10\src\Infra\app\UttDebugger\UttDebugger.cs:line 456
   at HP.Utt.Debugger.UttDebugger.<>c__DisplayClass22.<InvokeDebugStarting>b__21() in e:\LT\UTT\win32_release\12.01.1601.10\src\Infra\app\UttDebugger\UttDebugger.cs:line 416
   at ICSharpCode.SharpDevelop.Gui.WorkbenchSingleton.SafeThreadCall(Action method)
   at HP.Utt.Debugger.UttDebugger.InvokeDebugStarting(EventArgs e) in e:\LT\UTT\win32_release\12.01.1601.10\src\Infra\app\UttDebugger\UttDebugger.cs:line 414
   at HP.Utt.Debugger.UttDebugger.Start(ProcessStartInfo processStartInfo) in e:\LT\UTT\win32_release\12.01.1601.10\src\Infra\app\UttDebugger\UttDebugger.cs:line 292
   at HP.LR.Vugen.DebuggerBackend.VugenDebuggerUtilities.StartReplay(String usrFileName, String& mdrvCmdFileName, String replayResultName, Object extraData, Boolean saveBeforeReplay) in e:\LT\LT-LR\win32_release\12.01.2079.0_clean\app\VuGen\BackEnd\Current\Debugger\HP.LR.Vugen.DebuggerBackend\VugenDebuggerUtilities.cs:line 174
   at HP.LR.Vugen.FrontEnd.DebuggerAddin.Gui.ReplayOperations.StartReplay(Boolean pauseOnStart, String usrFileName, String replayResultName) in e:\LT\LT-LR\win32_release\12.01.2079.0_clean\app\VuGen\FrontEnd\Current\CoreAddins\VuGenDebugger\Gui\ReplayOperations.cs:line 92
   at HP.LR.Vugen.FrontEnd.DebuggerAddin.Gui.ReplayOperations.ExecuteReplay(Boolean pauseOnStart, Action`1 callback, CompilationResult compilationResult) in e:\LT\LT-LR\win32_release\12.01.2079.0_clean\app\VuGen\FrontEnd\Current\CoreAddins\VuGenDebugger\Gui\ReplayOperations.cs:line 158

2015-08-18 15:45:39,335 SharpDevelop  [  1] ERROR - An error has occurred.

If I purposefully make a syntax mistake, I get a compiler error.  With no syntax error, I get "an error has occurred."

Running as administrator doesn't make any difference.

Any ideas?

thanks

john