# Virtual Controler fail to start

**URL:** <https://tech-community.robotics.abb.com/t/virtual-controler-fail-to-start/5691>\
**Category:** RobotStudio\
**Created:** [August 30, 2013, 12:17pm UTC](https://tech-community.robotics.abb.com/t/virtual-controler-fail-to-start/5691 "2013-08-30T12:17:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![IannickV](https://avatars.discourse-cdn.com/v4/letter/i/c89c15/32.png) [@IannickV](https://tech-community.robotics.abb.com/u/IannickV)\
**Post date:** [August 30, 2013, 12:17pm UTC](https://tech-community.robotics.abb.com/t/virtual-controler-fail-to-start/5691/1 "2013-08-30T12:17:02Z")

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My virtual controler does not want to start:

# RobotStudio .NET exception: Le serveur RPC n’est pas disponible. (Exception from HRESULT: 0x800706BA)

Base exception: COMException  
Le serveur RPC n’est pas disponible. (Exception from HRESULT: 0x800706BA)

Server stack trace:  
at RobotStudio.Services.RobApi.IRobVC.IsRunning(Int32& bRunning)  
at RobotStudio.Services.RobApi.RobVcFactory.WaitUntilServerRunning(IRobVC vc)  
at RobotStudio.Services.RobApi.RobVcFactory.\<\>c\_\_DisplayClass2.b\_\_0(TaskCompletionSource`1 tcs, List`1 finals)  
at RobotStudio.Services.RobApi.TaskUtils.\<\>c\_\_DisplayClass1`1.b\_\_0()

Exception rethrown at [0]:  
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)  
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task)  
at RobotStudio.Services.Controller.ControllerService.d\_\_3e.MoveNext()

Exception rethrown at [1]:  
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)  
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task)  
at RobotStudio.Services.Controller.ControllerService.d\_\_34.MoveNext()

Exception rethrown at [2]:  
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)  
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task)  
at RobotStudio.Services.Controller.ControllerService.d\_\_2f.MoveNext()

Exception rethrown at [3]:  
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)  
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task)  
at ABBInternal.Controller.StationVirtualControllerManager.d\_\_d.MoveNext()

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<div class="post-metadata">

**Author:** ![Christian\_Goy](https://avatars.discourse-cdn.com/v4/letter/c/90db22/32.png) [@Christian\_Goy](https://tech-community.robotics.abb.com/u/Christian_Goy)\
**Post date:** [September 6, 2013, 7:58am UTC](https://tech-community.robotics.abb.com/t/virtual-controler-fail-to-start/5691/2 "2013-09-06T07:58:18Z")

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If this is related to your computer shut down you wrote in your other thread, you may to add the VC to a new station and do an I-Start

Before this you should copy your RAPID moduls under \INTERNAL\RAPID\PRGx, if you have RAPID code in the VC that was not saved with a backup or as file

regards

Christian