better error handling

coursebuilder/__main__.py

@@ -80,9 +80,9 @@ class CourseBuilder:
 
                                     with open(mod_path) as fm:
                                         try:
-                                            generator = MetaGenerator()
-                                            table_items = generator.process(yaml.load(fm,Loader=yaml.Loader),fields=actual_fields,lang=args.lang,pagebreak=args.pagebreak,createTitle=args.title,header_level=args.level)
 
+                                            table_items = generator.process(yaml.load(fm,Loader=yaml.Loader),fields=actual_fields,lang=args.lang,pagebreak=args.pagebreak,createTitle=args.title,header_level=args.level)
+                                            
                                             MarkdownGenerator.generate(table_items,pagebreak=args.pagebreak,title=args.title,header_level=args.level)
                                             
                                         except Exception as exc:

coursebuilder/metagenerator.py

@@ -107,7 +107,7 @@ class MetaGenerator:
                     case 'multinum' : table_items.append(self.process_multinum(meta,field,lang))
                     case 'multikey': table_items.append(self.process_multikey(meta,field,lang))
             except Exception as exp:
-                print(field,exp,exp.args)
+                print(field,' not resolvable in ',self.__schema,exp)
 
         # maybe return tableitems as np.Dataframe?
         return table_items