我自己和团队成员已按照会议中示例应用程序的“试用此示例”和“在 Teams 中使用应用程序”说明为 Microsoft Teams 开发应用程序： https ://github.com/OfficeDev/TeamsFx-Samples /tree/v2/in-meeting-app
我们在不同的计算机和不同的操作系统（Mac 和 PC）上都遵循了相同的步骤，但我们遇到了同样的问题：
“发生错误。此应用程序在重新加载之前可能不再响应”。
这些说明让我们打开 Powershell 并在两个位置运行命令。（“试试这个样本”第 5 步）
- 'tabs' 文件夹，要求运行 npm install 和 npm start
- 'bot' 文件夹，要求运行 npm install 和 npm run start:local
最初运行这些命令时不会出现错误，但是当我们在 Teams 中打开应用程序并单击按钮以显示侧面板时，运行命令的两个终端都会出现错误。
在终端 1 的 tabs 文件夹中，我们得到一个“代理错误”：
Windows PowerShell
Copyright (C) Microsoft Corporation. All rights reserved.
Try the new cross-platform PowerShell https://aka.ms/pscore6
PS C:\Users\Luke\TeamsApps\in-meeting-app\tabs> npm install
up to date, audited 1685 packages in 2s
101 packages are looking for funding
run `npm fund` for details
142 vulnerabilities (125 moderate, 16 high, 1 critical)
To address issues that do not require attention, run:
Compiled successfully!
You can now view microsoft-teams-ext in the browser.
Local: https://localhost:3000
On Your Network: https://192.168.0.3:3000
Note that the development build is not optimized.
To create a production build, use npm run build.
Proxy error: Could not proxy request /getGraphAccessToken?ssoToken=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ik1yNS1BVWliZkJpaTdOZDFqQmViYXhib1hXMCJ9.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.je5zMu4knsZ-NwqSKF1M_n71Ehxgs8WZGsPdIwUu0EBT3qdoHHL2ET4RqoTACqtMC8lDFqxFT2EWwYHcXes02QivXYEvWj8j-MQS-VhAs3FTh1e07qer8jq4cOeaVrLpfBjoCpSnbI_lXYUP-hz77YGWbUZrI6k5rXnij6-Jcn1TmvV9OgD_lrliWGIPHrS28TajvFa1Acu64YJGNAGys-r6uU7U5MrpcEszufRVExx8tDEysNWc55_Wr88Ur5mBIzDgDqiUbEf_RP2ZzlulRlPZC2ZVwI54VZqAWM2LfbCpD5bL9OhT7H9qAml5N8fOXY_WNHlYUWROgtD_iinQ from reflectrdomain.eu.rok.io to http://localhost:5000/.
See https://nodejs.org/api/errors.html#errors_common_system_errors for more information (ECONNRESET).在终端 2，bot 文件夹中，我们收到一个类型错误：
Windows PowerShell
Copyright (C) Microsoft Corporation. All rights reserved.
Try the new cross-platform PowerShell https://aka.ms/pscore6
PS C:\Users\Luke\TeamsApps\in-meeting-app\bot> npm install
up to date, audited 188 packages in 1s
12 packages are looking for funding
run `npm fund` for details
found 0 vulnerabilities
PS C:\Users\Luke\TeamsApps\in-meeting-app\bot> npm run start:local
> api-server@0.0.1 start:local
> cross-env NODE_ENV=development.local node ./index.js
API server is listening on port 5000
C:\Users\Luke\TeamsApps\in-meeting-app\bot\node_modules\botbuilder\lib\botFrameworkAdapter.js:192
const connectorClient = this.createConnectorClientInternal(reference.serviceUrl, credentials);
^
TypeError: Cannot read properties of undefined (reading 'serviceUrl')
at BotFrameworkAdapter.<anonymous> (C:\Users\Luke\TeamsApps\in-meeting-app\bot\node_modules\botbuilder\lib\botFrameworkAdapter.js:192:82)
at Generator.next (<anonymous>)
at C:\Users\Luke\TeamsApps\in-meeting-app\bot\node_modules\botbuilder\lib\botFrameworkAdapter.js:15:71
at new Promise (<anonymous>)
at __awaiter (C:\Users\Luke\TeamsApps\in-meeting-app\bot\node_modules\botbuilder\lib\botFrameworkAdapter.js:11:12)
at BotFrameworkAdapter.continueConversation (C:\Users\Luke\TeamsApps\in-meeting-app\bot\node_modules\botbuilder\lib\botFrameworkAdapter.js:165:16)
at C:\Users\Luke\TeamsApps\in-meeting-app\bot\index.js:144:13
at Layer.handle [as handle_request] (C:\Users\Luke\TeamsApps\in-meeting-app\bot\node_modules\express\lib\router\layer.js:95:5)
at next (C:\Users\Luke\TeamsApps\in-meeting-app\bot\node_modules\express\lib\router\route.js:137:13)
at Route.dispatch (C:\Users\Luke\TeamsApps\in-meeting-app\bot\node_modules\express\lib\router\route.js:112:3)我在 Mac 上的团队成员没有收到我上面遇到的错误，而是收到消息“由于未知原因无法交换访问令牌。”，但他的客户表现出相同的行为。
每次我们打开和关闭侧面板时，这些错误都会重复。
我们能做些什么来解决这个问题，并让它按预期显示？
重现步骤：按照https://github.com/OfficeDev/TeamsFx-Samples/tree/v2/in-meeting-app上的步骤操作
“发生错误。此应用程序在重新加载之前可能不再响应。”