Unexpected exception during Update: StandardOut has not been redirected or the process hasn't started yet.

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
 ---> System.InvalidOperationException: StandardOut has not been redirected or the process hasn't started yet.
   at System.Diagnostics.Process.BeginOutputReadLine()
   at _CoreLibBasics_.System.Executor_C.Update(String File_Name_In, String Arguments_In, String Working_Directory_In, String Environment_Path_Variable_In, Boolean Run_as_Admin_In, Boolean Execute_In, IObservable`1& Output_Out, IObservable`1& Error_Out, IObservable`1& Exited_Out, Int32& Id_Out, Boolean& IsRunning_Out, Int32& Exit_Code_Out)
   at _HowTo_Run_and_Kill_external_programs_.Main.HowTo_Run_and_Kill_external_programsApplication_PProgram_.Update__TRACE__(HowTo_Run_and_Kill_external_programsApplication_P __self, PatchTracer __tracer) in C:\Program Files\vvvv\vvvv_gamma_7.0-win-x64\packs\VL.CoreLib\help\System\HowTo Run and Kill external programs.vl.1.11.cs:line 139
   at _HowTo_Run_and_Kill_external_programs_.Main.HowTo_Run_and_Kill_external_programsApplication_PProgram_.Update(HowTo_Run_and_Kill_external_programsApplication_P __self) in C:\Program Files\vvvv\vvvv_gamma_7.0-win-x64\packs\VL.CoreLib\help\System\HowTo Run and Kill external programs.vl.1.11.cs:line 29
   at InvokeStub_HowTo_Run_and_Kill_external_programsApplication_P.Update(Object, Object, IntPtr*)
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
   --- End of inner exception stack trace ---
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
   at VL.Lang.Platforms.RuntimeInstance.Step(ITargetCompilation compilation, TimeSpan timeSinceStart)
   at VL.Lang.Platforms.RuntimeHost.StepInstances(ITargetCompilation compilation, TimeSpan timeSinceStart, Boolean& hadToKill)
