加载此笔记本时出错。请确保该文件可访问，然后重试。

请确保您有权查看 GitHub 中的这个笔记本，并授权 Colab 使用 GitHub API。

https://github.com/pytorch/xla/blob/master/contrib/colab/pytorch-xla-profiling-colab.ipynb 
Fetch for https://api.github.com/repos/pytorch/xla/contents/contrib/colab?per_page=100&ref=master failed: {"message":"Not Found","documentation_url":"https://docs.github.com/rest/repos/contents#get-repository-content","status":"404"}
CustomError: Fetch for https://api.github.com/repos/pytorch/xla/contents/contrib/colab?per_page=100&ref=master failed: {"message":"Not Found","documentation_url":"https://docs.github.com/rest/repos/contents#get-repository-content","status":"404"}
    at new jN (https://ssl.gstatic.com/colaboratory-static/common/fd1141241a8b38288d6928936add5261/external_binary_l10n__zh_cn.js:2472:68)
    at xa.program_ (https://ssl.gstatic.com/colaboratory-static/common/fd1141241a8b38288d6928936add5261/external_binary_l10n__zh_cn.js:2455:436)
    at za (https://ssl.gstatic.com/colaboratory-static/common/fd1141241a8b38288d6928936add5261/external_binary_l10n__zh_cn.js:16:57)
    at xa.next_ (https://ssl.gstatic.com/colaboratory-static/common/fd1141241a8b38288d6928936add5261/external_binary_l10n__zh_cn.js:14:195)
    at kaa.next (https://ssl.gstatic.com/colaboratory-static/common/fd1141241a8b38288d6928936add5261/external_binary_l10n__zh_cn.js:17:48)
    at b (https://ssl.gstatic.com/colaboratory-static/common/fd1141241a8b38288d6928936add5261/external_binary_l10n__zh_cn.js:17:309)
 请求 GitHub 授权