# object reference not set to object instance

**URL:** <https://tech-community.robotics.abb.com/t/object-reference-not-set-to-object-instance/5940>\
**Category:** RobotStudio\
**Created:** [February 4, 2014, 4:09pm UTC](https://tech-community.robotics.abb.com/t/object-reference-not-set-to-object-instance/5940 "2014-02-04T16:09:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Dante1990](https://avatars.discourse-cdn.com/v4/letter/d/ccd318/32.png) [@Dante1990](https://tech-community.robotics.abb.com/u/Dante1990)\
**Post date:** [February 4, 2014, 4:09pm UTC](https://tech-community.robotics.abb.com/t/object-reference-not-set-to-object-instance/5940/1 "2014-02-04T16:09:09Z")

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hi,

I try to open a station and get this mistake.  
stranger mistake: station.rsstn

# RobotStudio .NET exception: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.

Base exception: NullReferenceException  
Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.  
bei ABB.Robotics.RobotStudio.Stations.RsPathProcedure.get\_ModuleName()  
bei ABB.Robotics.RobotStudio.Stations.RsTask.GetDeclarationUrl(IDeclaration declaration)  
bei ABB.Robotics.RobotStudio.Stations.RsTask.AddToDeclarationsCache(IDeclaration declaration)  
bei ABB.Robotics.RobotStudio.Stations.RsTask.AfterLoad(PimDocument doc)  
bei RobotStudio.API.Persistence.PimDocument.LoadXml(Stream xmlStream, String expectedDocType, Int64 pimStreamSize, Nullable`1 requiredGuid) bei RobotStudio.API.Persistence.PimDocument.InternalLoad(String fileName, String docType, Boolean readOnly, Nullable`1 requiredGuid)  
bei RobotStudio.API.Persistence.PimDocument.Load(String fileName, String docType, Boolean readOnly, Boolean allowExisting, Nullable`1 requiredGuid, ProgressNotification progressDelegate, Double progressStart, Double progressEnd)  
bei ABB.Robotics.RobotStudio.Stations.Station.Load(String fileName, Boolean asReadOnly, ProgressNotification progressDelegate, FileNotFoundNotification fileNotFoundDelegate, Boolean loadGeometry)  
bei ABBInternal.FileCommands.FileCommandServices.OpenStation(String fileName, Boolean loadGeometry)  
bei ABBInternal.FileCommands.RecentStationsCommandHandler.LoadRecentStation(String fileName)  
bei RobotStudio.Backstage.BackstageRecent.btn\_ExecuteCommand(Object sender, ExecuteCommandEventArgs e)  
bei ABB.Robotics.RobotStudio.Environment.CommandBarButton.RaiseExecuteCommand(ExecuteCommandReason reason)

have anyone an idea, how i can open the station ?

thanks

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<div class="post-metadata">

**Author:** ![Henrik\_Berlin](https://dub1.discourse-cdn.com/flex005/user_avatar/tech-community.robotics.abb.com/henrik_berlin/32/1011_2.png) [@Henrik\_Berlin](https://tech-community.robotics.abb.com/u/Henrik_Berlin)\
**Post date:** [February 4, 2014, 4:30pm UTC](https://tech-community.robotics.abb.com/t/object-reference-not-set-to-object-instance/5940/2 "2014-02-04T16:30:13Z")

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Please get in touch with your local ABB Robotics Service representative that can forward your issue to our tech support. If you don’t have an established support contact at ABB you can check at [http://www.abb.com/contacts](http://www.abb.com/contacts)