cannot convert from 'Microsoft.TeamsFx.Bot.TeamsBotSsoPrompt' to 'Microsoft.Bot.Builder.Dialogs.Dialog

[PauwelsYoran]

Hi am having an issue with adding SSO to my agent toolkit agent.

I created an teams agent based on the weatheragent Template from the toolkit. This all works locally and on teams.
Now i would like to add SSO to the teams bot, i followed the steps as described here https://learn.microsoft.com/en-us/microsoftteams/platform/toolkit/toolkit-v4/add-single-sign-on-vs

When i copy the template file SSO/SsoDialog.cs to my bot i receive an error on line 46.

AddDialog(new TeamsBotSsoPrompt(DialogConstants.TEAMS_SSO_PROMPT, settings));

Error (active) CS1503 Argument 1: cannot convert from 'Microsoft.TeamsFx.Bot.TeamsBotSsoPrompt' to 'Microsoft.Bot.Builder.Dialogs.Dialog'

Is this an known issue with the template and is there something that needs to change? Or is there something that missed that has to change?

[m365-agent-toolkit-assistant]

👋 Hi @PauwelsYoran,

Thank you for reporting this issue! We want to let you know that:

⏱️ Our team will personally review your issue
🎯 You can expect a response within 2 business days

✨ This is an AI-generated initial response
🤖 AI-Generated Preliminary Analysis:

This is a known issue when integrating SSO with Teams bots using the Microsoft 365 Agents Toolkit's weatheragent template and following documentation for SSO. Here’s what’s happening and how you can resolve it:

Root Cause:

• The weatheragent template's code uses a different bot architecture or dependencies, and the SSO sample (SsoDialog.cs) expects to add a Dialog (from Microsoft.Bot.Builder.Dialogs) but the TeamsBotSsoPrompt may be from a different library or version (e.g., Microsoft.TeamsFx.Bot), leading to the type mismatch.

Actionable Steps:

1. Check your NuGet packages:
   • Make sure Microsoft.Bot.Builder.Dialogs and Microsoft.TeamsFx.Bot are compatible and up-to-date.
2. Ensure you’re using the correct TeamsBotSsoPrompt:
   • TeamsBotSsoPrompt must be derived from Dialog. Use the one from Microsoft.Bot.Builder namespace if available, not just from Microsoft.TeamsFx.Bot.
3. Do NOT replace the whole Config.cs or related files:
   • Instead of copying/pasting the whole template, merge in only the necessary SSO classes or methods, inside your existing namespace and class structure, without duplicating.
4. Reference:
   • Official Issue & Resolution

If you still get the error:

• Please share: your toolkit version, project setup method (VS Code/VS/CLI), and SSO-related package versions for more targeted help.

✨We'd love your feedback! Please take a moment to fill out our survey.

---

Note: This is an automated first response generated by AI. A human team member will review your issue and provide a more detailed response soon. We appreciate your patience!

[nliu-ms]

Hi @PauwelsYoran , I think it's related to recent changes in TeamsFx SDK, it now uses Microsoft Agents SDK instead of Bot Framework SDK. https://github.com/OfficeDev/microsoft-365-agents-toolkit/blob/dev/packages/dotnet-sdk/CHANGELOG.md#300

Can you tell me your Visual Studio version so I can reproduce the issue, thanks!

[PauwelsYoran]

@nliu-ms
This is my visual studio info

For the nuget packages i am using the latest stable 1.01 for agents and 4.23 for the bots

Teamsfx is version 3.0.0

[PauwelsYoran]

I feel like the examples for adding SSO aren't really designed for the teams agents, or at least not the weatheragent template.

When i followed the bot steps, since the agent is added as a bot in teams, then everything from step 7 onwards becomes guesswork and doesnt seem to work well. Most of the code that have to look for and add to or replace, isn't there. Or does that mean that i have to ad the code myself if i cant find it:
fro example builder.Services.AddSingleton<BotFrameworkAuthentication, ConfigurationBotFrameworkAuthentication>(); isnt present in the template

https://learn.microsoft.com/en-us/microsoftteams/platform/toolkit/toolkit-v4/add-single-sign-on-vs

[nliu-ms]

@PauwelsYoran, the sample codes generated by Add authentication code command is old, it still uses Bot builders SDK, whereas weather agent template and TeamsFx SDK 3.0.0 uses Agents SDK instead. They're not compatible. That's why you meet the issue.

Let me figure out the correct sample code later.

[PauwelsYoran]

@nliu-ms i followed the steps in this example to sign in into teams with sso. This seems to work well for me. Maybe a new template can be based on this?

.https://github.com/microsoft/Agents/blob/main/samples/basic/authorization/auto-signin/dotnet/README.md

[nliu-ms]

@PauwelsYoran , glad to hear that!

Thanks for the suggestion, I will check this sample and talk with PM, either we will have a new template, or we will update sample codes generated by Add authentication code command.