issue warning instead of error

src/gui_load_mod_file.m

@@ -183,7 +183,7 @@ end
                 steady;
                 oo_.dr.eigval = check(M_, options_, oo_);
             catch
-                gui_tools.show_error('Couldn''t find the steady state, so you need to fill in Model Settings->Steady State Guess before doing anything else');
+                gui_tools.show_warning('Couldn''t find the steady state, so you need to fill in Model Settings->Steady State Guess before doing anything else');
             end
             jObj.stop;
             jObj.setBusyText('Done');