[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-08-01 (世界標準時間)。"],[],[],null,["This page describes some common issues that you might encounter involving\nauthentication and authorization.\n\n`This app isn't verified`\n\nIf the OAuth consent screen displays the warning \"This app isn't verified,\" your\napp is requesting scopes that provide access to sensitive user data. If your\napplication uses sensitive scopes, your app must go through the\n[verification process](https://support.google.com/cloud/answer/7454865)\nto remove that warning and other limitations. During the development phase, you\ncan continue past this warning by selecting **Advanced \\\u003e Go to {Project Name}\n(unsafe)**.\n\n`File not found error for credentials.json`\n\nWhen running the code sample, you might receive a \"file not found\" or \"no such\nfile\" error message regarding credentials.json.\n\nThis error occurs when you have not authorized the desktop application\ncredentials. To learn how to create credentials\nfor a desktop application, go to\n[Create credentials](/workspace/guides/create-credentials#desktop-app).\n\nAfter you create the credentials, make sure the downloaded JSON file is saved as\n`credentials.json`. Then move the file to your working directory.\n\n`Token has been expired or revoked`\n\nWhen running the code sample, you might receive a \"Token has been expired\" or\n\"Token has been revoked\" error message.\n\nThis error occurs when an access token from the Google Authorization Server has\neither expired or has been revoked. For information about potential causes\nand fixes, see\n[Refresh token expiration](/identity/protocols/oauth2#expiration).\n\nJavaScript errors\n\nThe following are some common JavaScript errors.\n\n`Error: origin_mismatch`\n\nThis error occurs during the authorization flow if the host and port used\nto serve the web page doesn't match an allowed JavaScript origin on your\nGoogle Cloud console project. Make sure you set an authorized\nJavaScript origin and that the URL in your browser matches the origin URL.\n\n`idpiframe_initialization_failed: Failed to read the 'localStorage' property from 'Window'`\n\nThis error occurs when third-party cookies and data storage aren't enabled\nin your browser. These options are required by the Google Sign-in library. For\nmore information, see\n[3rd-party cookies and data storage](https://developers.google.com/identity/sign-in/web/troubleshooting#third-party_cookies_and_data_blocked).\n| **Note:** In your own app, you should prompt users to enable third-party cookies and data storage or add an exception for `accounts.google.com`.\n\n`idpiframe_initialization_failed: Not a valid origin for the client`\n\nThis error occurs when the domain registered doesn't match the domain being\nused to host the web page. Ensure that the origin you registered matches the URL\nin the browser."]]