utils/exceptions.py

class ProjectDirNotExistException(Exception):
    pass

class ProjectLoadFailureException(Exception):
    pass

class ProjectNotSupportedException(Exception):
    pass

class ImgnameNotInProjectException(Exception):
    pass

class NotImplementedProjException(Exception):
    pass

class InvalidModuleConfigException(Exception):
    pass

class InvalidProgramConfigException(Exception):
    pass