User`s guide

Upgrading from an Earlier Release
20-5
To ensure code from before Release 12 works properly in Release 12, either use
try/catch logic to deal with error conditions, or use a form of mbuild that
returns an error status instead of throwing an error. Specifically
try
mbuild something.c
catch
disp( something failed );
end
or
status = mbuild( something.c );
if status ~= 0
disp( something failed );
end