Failed to send message: The principal lacks the required data action Microsoft.CognitiveServices/accounts/AIServices/agents/write

I've deployed the sample hosted agent to my Foundry Project. The playground fails when it runs in the Foundry Playground but works fine in local playground. There were no instructions in the documentation indicating permissions requirements. How do I fix this issue? I'm using the New Foundry UI. The pemissions link in the error is very confusing. Is this my user credentials or a service?

Failed to process the message: Failed to send message: Error event received: {"sequence_number":3,"code":"server_error","message":"(PermissionDenied) The principal bbfdd38aXXXXX lacks the required data action Microsoft.CognitiveServices/accounts/AIServices/agents/write to perform POST /api/projects/{projectName}/assistants operation. For instructions on granting the necessary permissions, see [https://aka.ms/FoundryPermissions.\nCode](https://aka.ms/FoundryPermissions.%5CnCode): PermissionDenied\nMessage: The principal bbfdd38a-XXXX lacks the required data action Microsoft.CognitiveServices/accounts/AIServices/agents/write to perform POST /api/projects/{projectName}/assistants operation. For instructions on granting the necessary permissions, see [https://aka.ms/FoundryPermissions.","param":"","type":"error"}](https://aka.ms/FoundryPermissions.%22,%22param%22:%22%22,%22type%22:%22error%22%7D)

Beginne damit, dem Microsoft Foundry-Berechtigungslink aus dem gemeldeten Fehler zu folgen und die Dokumentation zum Beispiel für gehostete Agents zu prüfen. Kläre, ob der Principal die Identität des Benutzers oder ein Dienst ist, dokumentiere die erforderliche agents/write-Berechtigung und, wo sie gewährt werden muss, und betrachte den verwirrenden Berechtigungslink als behoben, wenn ein Benutzer den Anweisungen folgen kann, um das Beispiel in Foundry Playground auszuführen.

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