include QList supplied to see if error arrives like in 'Binder VM' - it does not; simple function defined to see if anyyerror comes up - it does not

app/datamodel.cpp

@@ -27,3 +27,8 @@ DataModel::DataModel()
 
     Kennfeld_Ueberhitzung = Kennfeld_Ueberhitzung_Default;
 }
+
+void* DataModel::CurrentData(void)
+{
+    return nullptr;
+}

app/datamodel.h

@@ -11,7 +11,7 @@ Copyright:   Binder GmbH TUT
 Purpose:     Definitions, constants used by the datamodel are collected here
 Notes:       [Any relevant details, such as dependencies, usage examples, or known issues.]
 */
-
+#include <QList>
 #include "dataset.h"
 
 
@@ -69,6 +69,8 @@ private:
          {1.00, 0.80, 0.60, 0.50, 0.40, 0.35, 0.30, 0.25, 0.20},
          {1.00, 0.80, 0.60, 0.50, 0.40, 0.35, 0.30, 0.25, 0.20},
          {1.00, 0.80, 0.60, 0.50, 0.40, 0.35, 0.30, 0.25, 0.20}};
+
+     void* CurrentData(void);
 };