diff --git a/Modules/IGT/IGTFilters/mitkTrackingVolumeGenerator.cpp b/Modules/IGT/IGTFilters/mitkTrackingVolumeGenerator.cpp
index af932b018b..f0cf0f9693 100644
--- a/Modules/IGT/IGTFilters/mitkTrackingVolumeGenerator.cpp
+++ b/Modules/IGT/IGTFilters/mitkTrackingVolumeGenerator.cpp
@@ -1,110 +1,118 @@
 /*=========================================================================
 
 Program:   Medical Imaging & Interaction Toolkit
 Language:  C++
 Date:      $Date: 2011-01-18 13:22:38 +0100 (Di, 18 Jan 2011) $
 Version:   $Revision: 28959 $
 
 Copyright (c) German Cancer Research Center, Division of Medical and
 Biological Informatics. All rights reserved.
 See MITKCopyright.txt or http://www.mitk.org/copyright.html for details.
 
 This software is distributed WITHOUT ANY WARRANTY; without even
 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the above copyright notices for more information.
 
 =========================================================================*/
 
 #include "mitkTrackingVolumeGenerator.h"
 #include "mitkSTLFileReader.h"
 #include "mitkStandardFileLocations.h"
 #include "mitkConfig.h"
 #include <vtkCubeSource.h>
 #include <mitkTrackingTypes.h>
 #include <mitkTrackingDevice.h>
 #include <mitkVirtualTrackingDevice.h>
 #include <vtkSmartPointer.h>
 #include <mitkSurface.h>
 
 mitk::TrackingVolumeGenerator::TrackingVolumeGenerator()
 {
+  try
+    {
     std::string volumeDir = MITK_ROOT;
     volumeDir += "Modules/IGT/IGTTrackingDevices/TrackingVolumeData"; //folder which contains the trackingdevices configs
     mitk::StandardFileLocations::GetInstance()->AddDirectoryForSearch( volumeDir.c_str(), false ); //add this directory to StdFileLocations for the search
+    }
+  catch(std::exception e)
+    {
+    MITK_ERROR << "Error: cannot add path to mitk standard file locations";
+    //TODO: add appropriate error handling as soon as there is an error handling concept for MITK
+    }
 
 	m_Data = mitk::DeviceDataUnspecified;
 }
 
 
 void mitk::TrackingVolumeGenerator::SetTrackingDevice (mitk::TrackingDevice::Pointer tracker)
 {
 	this->m_Data = mitk::GetFirstCompatibleDeviceDataForLine(tracker->GetType());
 }
 
 void mitk::TrackingVolumeGenerator::GenerateData()
 {
     mitk::Surface::Pointer output = this->GetOutput();  //the surface wich represents the tracking volume
 
     std::string filepath = ""; // Full path to file (wil be resolved later)
 	std::string filename = this->m_Data.VolumeModelLocation; // Name of the file or possibly a magic String, e.g. "cube"
 	
 	// See if filename matches a magic string.
 	if (filename.compare("cube") == 0){
             vtkSmartPointer<vtkCubeSource> cubeSource = vtkSmartPointer<vtkCubeSource>::New();
             double bounds[6];
             bounds[0] = bounds[2] = bounds[4] = -400.0;  // initialize bounds to -400 ... +400 cube. This is the default value of the
             bounds[1] = bounds[3] = bounds[5] =  400.0;  // virtual tracking device, but it can be changed. In that case,
                                                          // the tracking volume polydata has to be updated manually
             cubeSource->SetBounds(bounds);
             cubeSource->GetOutput()->Update();
 
             output->SetVtkPolyData(cubeSource->GetOutput()); //set the vtkCubeSource as polyData of the surface
             return;
 	} 
 	if (filename.compare("") == 0) // empty String means no model, return empty output
 	{
       output->SetVtkPolyData(vtkPolyData::New()); //initialize with empty poly data (otherwise old surfaces may be returned) => so an empty surface is returned
       return;
 	}
 	
 	// from here on, we assume that filename contains an actual filename and not a magic string
 
 	filepath = mitk::StandardFileLocations::GetInstance()->FindFile(filename.c_str());
 	
     if (filepath.empty())
     {
         MITK_ERROR << ("Volume Generator could not find the specified file " + filename);
         return;
     }
 
     mitk::STLFileReader::Pointer stlReader = mitk::STLFileReader::New();
     stlReader->SetFileName( filepath.c_str() );
     stlReader->Update();
 
     if ( stlReader->GetOutput() == NULL)
     {
         MITK_ERROR << "Error while reading file";
         return ;
     }
     output->SetVtkPolyData( stlReader->GetOutput()->GetVtkPolyData());//set the visible trackingvolume
 }
 
 void mitk::TrackingVolumeGenerator::SetTrackingDeviceType(mitk::TrackingDeviceType deviceType)
 {
   m_Data = mitk::GetFirstCompatibleDeviceDataForLine(deviceType);
 }
 
 mitk::TrackingDeviceType mitk::TrackingVolumeGenerator::GetTrackingDeviceType() const
 {
  return m_Data.Line;
 }
 
 void mitk::TrackingVolumeGenerator::SetTrackingDeviceData(mitk::TrackingDeviceData deviceData)
 {
   m_Data= deviceData;
 }
 
 mitk::TrackingDeviceData mitk::TrackingVolumeGenerator::GetTrackingDeviceData() const
 {
    return m_Data;
 }