Index: /issm/trunk/src/m/classes/public/process_solve_options.m
===================================================================
--- /issm/trunk/src/m/classes/public/process_solve_options.m	(revision 5642)
+++ /issm/trunk/src/m/classes/public/process_solve_options.m	(revision 5643)
@@ -20,6 +20,6 @@
 
 %convert to Enum if a string was provided
-if ischar(analysis_type),        analysis_type=eval([upper(analysis_type(1))     lower(analysis_type(2:end-8))     'SolutionEnum()']); end
-if ischar(sub_analysis_type),sub_analysis_type=eval([upper(sub_analysis_type(1)) lower(sub_analysis_type(2:end-8)) 'AnalysisEnum()']); end
+if ischar(analysis_type), error(['only Enums are supported as ''analysis_type''. For example: md=solve(md,''analysis_type'',DiagnosticSolutionEnum); '])   
+if ischar(sub_analysis_type), error(['only Enums are supported as ''sub_analysis_type''. For example: md=solve(md,''analysis_type'',DiagnosticSolutionEnum); '])
 
 %check solution type is supported