Index: Riskeer/Common/src/Riskeer.Common.Forms/GuiServices/HydraulicBoundaryLocationCalculationGuiService.cs
===================================================================
diff -u -r8339953df3276b6c7b4a3d9f5a278e4c19e85be3 -r5cb50fc0a45257ae17fee3aa720a9d483996202c
--- Riskeer/Common/src/Riskeer.Common.Forms/GuiServices/HydraulicBoundaryLocationCalculationGuiService.cs	(.../HydraulicBoundaryLocationCalculationGuiService.cs)	(revision 8339953df3276b6c7b4a3d9f5a278e4c19e85be3)
+++ Riskeer/Common/src/Riskeer.Common.Forms/GuiServices/HydraulicBoundaryLocationCalculationGuiService.cs	(.../HydraulicBoundaryLocationCalculationGuiService.cs)	(revision 5cb50fc0a45257ae17fee3aa720a9d483996202c)
@@ -106,7 +106,7 @@
             string validationProblem = HydraulicBoundaryDataHelper.ValidateFilesForCalculation(
                 hydraulicBoundaryData.FilePath,
                 hydraulicBoundaryData.HydraulicLocationConfigurationSettings.FilePath,
-                hydraulicBoundaryData.EffectivePreprocessorDirectory(),
+                string.Empty,
                 hydraulicBoundaryData.HydraulicLocationConfigurationSettings.UsePreprocessorClosure);
 
             if (string.IsNullOrEmpty(validationProblem))
Index: Riskeer/Common/src/Riskeer.Common.Service/HydraulicBoundaryDataConnectionValidator.cs
===================================================================
diff -u -r87f472ef7be4fee149c99b122507d6d23b8f3f12 -r5cb50fc0a45257ae17fee3aa720a9d483996202c
--- Riskeer/Common/src/Riskeer.Common.Service/HydraulicBoundaryDataConnectionValidator.cs	(.../HydraulicBoundaryDataConnectionValidator.cs)	(revision 87f472ef7be4fee149c99b122507d6d23b8f3f12)
+++ Riskeer/Common/src/Riskeer.Common.Service/HydraulicBoundaryDataConnectionValidator.cs	(.../HydraulicBoundaryDataConnectionValidator.cs)	(revision 5cb50fc0a45257ae17fee3aa720a9d483996202c)
@@ -52,7 +52,7 @@
             string validationProblem = HydraulicBoundaryDataHelper.ValidateFilesForCalculation(
                 hydraulicBoundaryData.FilePath,
                 hydraulicBoundaryData.HydraulicLocationConfigurationSettings.FilePath,
-                hydraulicBoundaryData.EffectivePreprocessorDirectory(),
+                string.Empty,
                 hydraulicBoundaryData.HydraulicLocationConfigurationSettings.UsePreprocessorClosure);
 
             if (!string.IsNullOrEmpty(validationProblem))
Index: Riskeer/DuneErosion/src/Riskeer.DuneErosion.Forms/GuiServices/DuneLocationCalculationGuiService.cs
===================================================================
diff -u -r75b4d0cc71d09e5cef6adc062730892c93cf547b -r5cb50fc0a45257ae17fee3aa720a9d483996202c
--- Riskeer/DuneErosion/src/Riskeer.DuneErosion.Forms/GuiServices/DuneLocationCalculationGuiService.cs	(.../DuneLocationCalculationGuiService.cs)	(revision 75b4d0cc71d09e5cef6adc062730892c93cf547b)
+++ Riskeer/DuneErosion/src/Riskeer.DuneErosion.Forms/GuiServices/DuneLocationCalculationGuiService.cs	(.../DuneLocationCalculationGuiService.cs)	(revision 5cb50fc0a45257ae17fee3aa720a9d483996202c)
@@ -82,12 +82,11 @@
             }
 
             string hrdFilePath = assessmentSection.HydraulicBoundaryData.FilePath;
-            string preprocessorDirectory = assessmentSection.HydraulicBoundaryData.EffectivePreprocessorDirectory();
             HydraulicLocationConfigurationSettings hydraulicLocationConfigurationSettings = assessmentSection.HydraulicBoundaryData.HydraulicLocationConfigurationSettings;
 
             string validationProblem = HydraulicBoundaryDataHelper.ValidateFilesForCalculation(hrdFilePath,
                                                                                                hydraulicLocationConfigurationSettings.FilePath,
-                                                                                               preprocessorDirectory,
+                                                                                               string.Empty,
                                                                                                hydraulicLocationConfigurationSettings.UsePreprocessorClosure);
 
             if (!string.IsNullOrEmpty(validationProblem))
Index: Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs
===================================================================
diff -u -rd6f16f00a6856fd681596b2a8bc0c384bfea587b -r5cb50fc0a45257ae17fee3aa720a9d483996202c
--- Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs	(.../RiskeerPlugin.cs)	(revision d6f16f00a6856fd681596b2a8bc0c384bfea587b)
+++ Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs	(.../RiskeerPlugin.cs)	(revision 5cb50fc0a45257ae17fee3aa720a9d483996202c)
@@ -1163,7 +1163,7 @@
                 string validationProblem = HydraulicBoundaryDataHelper.ValidateFilesForCalculation(
                     assessmentSection.HydraulicBoundaryData.FilePath,
                     assessmentSection.HydraulicBoundaryData.HydraulicLocationConfigurationSettings.FilePath,
-                    assessmentSection.HydraulicBoundaryData.EffectivePreprocessorDirectory(),
+                    string.Empty,
                     assessmentSection.HydraulicBoundaryData.HydraulicLocationConfigurationSettings.UsePreprocessorClosure);
 
                 if (validationProblem != null)