Index: trunk/SDToolBox/outputmessages.py
===================================================================
diff -u -r30 -r40
--- trunk/SDToolBox/outputmessages.py	(.../outputmessages.py)	(revision 30)
+++ trunk/SDToolBox/outputmessages.py	(.../outputmessages.py)	(revision 40)
@@ -1,9 +1,14 @@
 #! /usr/bin/env python
 
-""" Info messages """ 
+""" Info messages """
 
-""" Warning messages """ 
+""" Warning messages """
 
-""" Error messages """ 
+""" Error messages """
 error_missing_arguments = 'Missing arguments -i -o. Run {0} -h for help.'
-error_missing_list_of_variables = 'List of variable names should be given.'
\ No newline at end of file
+error_missing_list_of_variables = 'List of variable names should be given.'
+error_no_valid_input_data = 'No InputData object was provided.'
+error_not_enough_coordinates = '' + \
+    'Not enough coordinates were provided as InputData.coord_list.'
+error_no_valid_dict_of_vars = '' + \
+    'A dictionary of variables (key: value) should be provided.'