Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Calculator/HydraRingCalculatorBase.cs
===================================================================
diff -u -r93044b3ed52a925c5321b68ff2beb886c6bf7068 -rb0e860b4cc7d7639736222c8da9e4d67132961da
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Calculator/HydraRingCalculatorBase.cs	(.../HydraRingCalculatorBase.cs)	(revision 93044b3ed52a925c5321b68ff2beb886c6bf7068)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Calculator/HydraRingCalculatorBase.cs	(.../HydraRingCalculatorBase.cs)	(revision b0e860b4cc7d7639736222c8da9e4d67132961da)
@@ -84,6 +84,11 @@
         public GeneralResult IllustrationPointsResult { get; private set; }
 
         /// <summary>
+        /// Gets the error message of the illustration points parser.
+        /// </summary>
+        public string IllustrationPointsParserError { get; private set; }
+
+        /// <summary>
         /// Cancels any currently running Hydra-Ring calculation.
         /// </summary>
         public void Cancel()
@@ -176,7 +181,7 @@
             }
             catch (HydraRingFileParserException e)
             {
-                log.Warn(e.Message, e);
+                IllustrationPointsParserError = e.Message;
                 IllustrationPointsResult = null;
             }
         }
Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Calculator/HydraRingCalculatorBaseTest.cs
===================================================================
diff -u -r93044b3ed52a925c5321b68ff2beb886c6bf7068 -rb0e860b4cc7d7639736222c8da9e4d67132961da
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Calculator/HydraRingCalculatorBaseTest.cs	(.../HydraRingCalculatorBaseTest.cs)	(revision 93044b3ed52a925c5321b68ff2beb886c6bf7068)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Calculator/HydraRingCalculatorBaseTest.cs	(.../HydraRingCalculatorBaseTest.cs)	(revision b0e860b4cc7d7639736222c8da9e4d67132961da)
@@ -50,6 +50,22 @@
         }
 
         [Test]
+        public void Constructor_ValidArguments_ReturnsExpectedProperties()
+        {
+            // Setup
+            const string hlcdDirectory = "hlcdDirectory";
+
+            // Call
+            var calculator = new TestHydraRingCalculator(hlcdDirectory);
+
+            // Assert
+            Assert.IsNull(calculator.IllustrationPointsResult);
+            Assert.IsNull(calculator.OutputDirectory);
+            Assert.IsNull(calculator.LastErrorFileContent);
+            Assert.IsNull(calculator.IllustrationPointsParserError);
+        }
+
+        [Test]
         public void Calculate_WithCustomParser_ParsersExecutedAndOutputSet()
         {
             // Setup
@@ -123,17 +139,19 @@
         }
 
         [Test]
-        public void Calculate_IllustrationPointsParserThrowsException_LogExceptionMessageAsWarning()
+        public void Calculate_IllustrationPointsParserThrowsException_SetsIllustrationPointsParserError()
         {
             // Setup
             var calculator = new TestHydraRingCalculator("", new TestParser());
 
             // Call
-            Action test = () => calculator.PublicCalculate();
+            calculator.PublicCalculate();
 
             // Assert
             const string expectedMessage = "Er konden geen illustratiepunten worden uitgelezen.";
-            TestHelper.AssertLogMessageWithLevelIsGenerated(test, new Tuple<string, LogLevelConstant>(expectedMessage, LogLevelConstant.Warn));
+            Assert.AreEqual(expectedMessage, calculator.IllustrationPointsParserError);
+            Assert.IsNull(calculator.IllustrationPointsResult);
+//            TestHelper.AssertLogMessageWithLevelIsGenerated(test, new Tuple<string, LogLevelConstant>(expectedMessage, LogLevelConstant.Warn));
         }
     }