Updated error message when exceptions are thrown by the YAML parser s…

…ubstructure file loader.

src/yamlbuilder/TensegrityModel.cpp

@@ -231,15 +231,21 @@ void TensegrityModel::buildStructure(tgStructure& structure, const std::string&
     {
       // If a BadFile exception is thrown, output a detailed message first:
       std::cout << std::endl << "The YAML parser threw a BadFile exception when" <<
-	" trying to load one of your substructure YAML files. " <<
-	" This likely means that one of the substructure files cannot be found." <<
+	" trying to load one of your substructure YAML files. " << std::endl <<
+	"The path of the structure that the parser attempted to load is: '" <<
+	structurePath << "'. " << "Check to be sure that the file exists, and " <<
+	"that it is a proper YAML file according to the specification." <<
+	std::endl << std::endl;
+
+	/*" This likely means that one of the substructure files cannot be found." <<
 	" Check if you are using relative paths for your substructures," <<
 	" which would mean that you need to change into a specific directory" <<
 	" when running this parser. " <<
 	" For example, writing 'path: ./Tetrahedron.yaml' assumes that the" <<
 	" Tetrahedron.yaml file is in your current directory. " <<
 	" In this example, change to the directory that contains Tetrahedron.yaml" <<
-	" and try to run your application again." << std::endl << std::endl;
+	" and try to run your application again." << std::endl << std::endl;*/
+
       // Then, throw the exception again, so that the program stops.
       throw badfileexception;
     }