web
You’re offline. This is a read only version of the page.
close
Skip to main content

Announcements

News and Announcements icon
Community site session details

Community site session details

Session Id :
Power Platform Community / Forums / Power Automate / Cannot Start Power Aut...
Power Automate
Answered

Cannot Start Power Automate

(0) ShareShare
ReportReport
Posted on by 6

Hi,

 

Please help

It seems I cannot start using power automate desktop. An unhandled error occurs.

Please see screenshot below.

khris_mau_0-1643087624155.png

Message = The given key was not present in the dictionary.
Error = System.Collections.Generic.KeyNotFoundException
Full text = System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
at System.Collections.Concurrent.ConcurrentDictionary`2.get_Item(TKey key)
at Microsoft.Flow.RPA.Desktop.Console.Persistence.Core.Repositories.Environments.OneDriveEnvironmentsRepository.<GetByIdAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.Flow.RPA.Desktop.Console.Application.Environment.Commands.SetSelectedEnvironmentCommandHandler.<Handle>d__9.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at MediatR.Pipeline.RequestPostProcessorBehavior`2.<Handle>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at MediatR.Pipeline.RequestPreProcessorBehavior`2.<Handle>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.Flow.RPA.Desktop.Console.Host.MainViewModel.<SelectUserDefaultEnvironment>d__154.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.Flow.RPA.Desktop.Console.Host.MainViewModel.<OnSigninFlowFinishedEvent>d__144.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

  • Verified answer
    mgrachii Profile Picture
    206 on at

    Can you check if you have the most recent version of Power Automte for Desktop installed?

  • khris_mau Profile Picture
    6 on at

    Yes, I just downloaded the most recent version. Thank you.

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Season of Sharing Community Challenge Winners!

Congratulations to our community stars!

Kudos to our 2025 Community Spotlight Honorees

Expanding mentorship, skilling, and AI innovation

Leaderboard > Power Automate

#1
11manish Profile Picture

11manish 275 Super User 2026 Season 2

#2
Mohsin Ali Profile Picture

Mohsin Ali 235

#3
David_MA Profile Picture

David_MA 178 Super User 2026 Season 2

Last 30 days Overall leaderboard