Generate: improve error message for missing game

Generate.py

@@ -447,6 +447,11 @@ def roll_settings(weights: dict, plando_options: PlandoOptions = PlandoOptions.b
             raise Exception(f"Option {option_key} has to be in a game's section, not on its own.")
 
     ret.game = get_choice("game", weights)
+    if ret.game not in AutoWorldRegister.world_types:
+        picks = Utils.get_fuzzy_results(ret.game, AutoWorldRegister.world_types, limit=1)[0]
+        raise Exception(f"No world found to handle game {ret.game}. Did you mean '{picks[0]}' ({picks[1]}% sure)? "
+                        f"Check your spelling or installation of that world.")
+
     if ret.game not in weights:
         raise Exception(f"No game options for selected game \"{ret.game}\" found.")
 

WebHostLib/check.py

@@ -91,7 +91,7 @@ def roll_options(options: Dict[str, Union[dict, str]],
                         rolled_results[f"{filename}/{i + 1}"] = roll_settings(yaml_data,
                                                                               plando_options=plando_options)
             except Exception as e:
-                results[filename] = f"Failed to generate mystery in {filename}: {e}"
+                results[filename] = f"Failed to generate options in {filename}: {e}"
             else:
                 results[filename] = True
     return results, rolled_results