Exception not thrown when invalid resources_map.json is found

[moumenz]

Environment:

• Laravel-Code-Generator Version: dev-master 4b90e4f
• Laravel Version: 5.5.22

Description:

ERROR: Class 'CrestApps\CodeGenerator\Support\Exception' not found {"exception":"[object] (Symfony\Component\Debug\Exception\FatalThrowableError(code: 0)

Steps/Commands To Reproduce:

alter the resources_map.json file by making it invalid json format (like adding a comma at the end }, )