__construct()
CANNOT_USE_COMPONENTS_AFTER_SHUTDOWN
NO_REQUIRED_COMPONENT
NO_REQUIRED_LIBRARY
NO_REQUIRED_SETTING_DATA
OK
Exceptions codes constants class
CANNOT_USE_COMPONENTS_AFTER_SHUTDOWN = 4
NO_REQUIRED_COMPONENT = 3
NO_REQUIRED_LIBRARY = 2
NO_REQUIRED_SETTING_DATA = 1
OK = 0