AttributeError: 'Namespace' object has no attribute 'cache'

出现AttributeError: 'Namespace' object has no attribute 'cache'的错误是因为在代码中尝试访问一个不存在的属性。根据提供的引用内容，这段代码的问题是缺少'arch'参数。解决方法是使用parser添加'arch'参数。例如，可以在代码中添加以下代码:
parser.add_argument('--arch', default=1, type=float, metavar='M', help='arch') <span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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