def error(self, message="", errors=None, field_name=None):
        field_name = field_name if field_name else self.name
        raise ValidationError(message, errors=errors, field_name=field_name)
Returns true if any target contains the iOS specific key
dataset/ETHPy150Open MongoEngine/mongoengine/mongoengine/base/fields.py/BaseField.error--crossover with--dataset/ETHPy150Open adblockplus/gyp/pylib/gyp/xcode_emulation.py/_HasIOSTarget