Authenticate users and get an Azure AD access token for your Power BI app

Hi,

I am new to Power BI embeded service.and need some help to configure it. 

I have following - 

• Azure Active Directory tenant which comes with Office 365. 
• Power BI Pro Account (1 Year free subscription).
• Register the native app with local URL http://localhost:42734/ through Power BI App Registration Tool and have the client ID.

I am facing issues to "Access token for non-Power BI users (app owns data)". I am using Power BI Embedded Apps Owns Data sample downloaded through Github.

I have updated the following paramenters in the project file -

• client id
• group id
• pbi username  {power bi login  mail id}
• pbi password {power bi login password}

When i am sunning project it is giving error 

Error 
            Microsoft.IdentityModel.Clients.ActiveDirectory.AdalServiceException: unknown_error: Unknown error ---> System.Threading.Tasks.TaskCanceledException: A task was canceled.
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.HttpClientWrapper.<GetResponseAsync>d__30.MoveNext()
   --- End of inner exception stack trace ---
   at Microsoft.IdentityModel.Clients.ActiveDirectory.AdalHttpClient.<GetResponseAsync>d__21`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.AdalHttpClient.<GetResponseAsync>d__21`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.AdalHttpClient.<GetResponseAsync>d__20`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.UserRealmDiscoveryResponse.<CreateByDiscoveryAsync>d__24.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.AcquireTokenNonInteractiveHandler.<PreTokenRequest>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.AcquireTokenHandlerBase.<RunAsync>d__55.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationContext.<AcquireTokenCommonAsync>d__52.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationContextIntegratedAuthExtensions.<AcquireTokenAsync>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at PowerBIEmbedded_AppOwnsData.Controllers.HomeController.<EmbedReport>d__9.MoveNext() in D:\PowerBI-Developer-Samples-master\PowerBI-Developer-Samples-master\App Owns Data\PowerBIEmbedded_AppOwnsData\Controllers\HomeController.cs:line 49
	ErrorCode: unknown_error
	StatusCode: 408