Import-Module Microsoft.Graph.Authentication 2.34.0 Error GetTokenAsync

[BohrenAn]

Describe the bug

Import-Module Microsoft.Graph.Authentication
Import-Module : Method 'GetTokenAsync' in type
'Microsoft.Graph.PowerShell.Authentication.Core.Utilities.UserProvidedTokenCredential' from assembly
'Microsoft.Graph.Authentication.Core, Version=2.34.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' does not
have an implementation.
At line:1 char:1

• Import-Module Microsoft.Graph.Authentication

•   + CategoryInfo          : NotSpecified: (:) [Import-Module], TypeLoadException
    + FullyQualifiedErrorId : System.TypeLoadException,Microsoft.PowerShell.Commands.ImportModuleCommand
  
  

Expected behavior

Import-Module Microsoft.Graph.Authentication does not throw an error

How to reproduce

Import-Module Microsoft.Graph.Authentication

SDK Version

2.34.0

Latest version known to work for scenario above?

2.33.0

Known Workarounds

No response

Debug output

Click to expand log

``` Import-Module Microsoft.Graph.Authentication -Debug VERBOSE: Loading module from path 'C:\Users\a.bohren\OneDrive - Icewolf\Dokumente\WindowsPowerShell\Modules\Microsoft.Graph.Authentication\2.34.0\Microsoft.Graph.Authentication.psd1'.

Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help (default is "Y"): A
VERBOSE: Cannot verify the Microsoft .NET Framework version 4.7.2 because it is not included in the list of permitted
versions.
VERBOSE: Loading 'FormatsToProcess' from path 'C:\Users\a.bohren\OneDrive -
Icewolf\Dokumente\WindowsPowerShell\Modules\Microsoft.Graph.Authentication\2.34.0\Microsoft.Graph.Authentication.format
.ps1xml'.
VERBOSE: Populating RepositorySourceLocation property for module Microsoft.Graph.Authentication.
VERBOSE: Loading module from path 'C:\Users\a.bohren\OneDrive -
Icewolf\Dokumente\WindowsPowerShell\Modules\Microsoft.Graph.Authentication\2.34.0\Microsoft.Graph.Authentication.dll'.
VERBOSE: Importing cmdlet 'Get-ModuleCmdlet'.
VERBOSE: Importing cmdlet 'Get-ScriptCmdlet'.
VERBOSE: Importing cmdlet 'Connect-MgGraph'.
VERBOSE: Importing cmdlet 'Disconnect-MgGraph'.
VERBOSE: Importing cmdlet 'Add-MgEnvironment'.
VERBOSE: Importing cmdlet 'Get-MgEnvironment'.
VERBOSE: Importing cmdlet 'Remove-MgEnvironment'.
VERBOSE: Importing cmdlet 'Set-MgEnvironment'.
VERBOSE: Importing cmdlet 'Get-MgContext'.
VERBOSE: Importing cmdlet 'Get-MgGraphOption'.
VERBOSE: Importing cmdlet 'Invoke-MgGraphRequest'.
VERBOSE: Importing cmdlet 'Set-MgGraphOption'.
VERBOSE: Importing cmdlet 'Get-MgRequestContext'.
VERBOSE: Importing cmdlet 'Set-MgRequestContext'.
VERBOSE: Importing alias 'Connect-Graph'.
VERBOSE: Importing alias 'Disconnect-Graph'.
VERBOSE: Importing alias 'Disconnect-Graph'.
VERBOSE: Importing alias 'Disconnect-Graph'.
VERBOSE: Importing alias 'Disconnect-Graph'.
VERBOSE: Importing alias 'Disconnect-Graph'.
VERBOSE: Importing alias 'Disconnect-Graph'.
VERBOSE: Importing alias 'Disconnect-Graph'.
VERBOSE: Importing alias 'Invoke-GraphRequest'.
VERBOSE: Importing alias 'Invoke-MgRestMethod'.
VERBOSE: Importing alias 'Invoke-GraphRequest'.
VERBOSE: Importing alias 'Invoke-MgRestMethod'.
VERBOSE: Importing alias 'Invoke-GraphRequest'.
VERBOSE: Importing alias 'Invoke-MgRestMethod'.
VERBOSE: Importing alias 'Invoke-GraphRequest'.
VERBOSE: Importing alias 'Invoke-MgRestMethod'.
VERBOSE: Loading module from path 'C:\Users\a.bohren\OneDrive -
Icewolf\Dokumente\WindowsPowerShell\Modules\Microsoft.Graph.Authentication\2.34.0\Microsoft.Graph.Authentication.Core.d
ll'.
Import-Module : Method 'GetTokenAsync' in type
'Microsoft.Graph.PowerShell.Authentication.Core.Utilities.UserProvidedTokenCredential' from assembly
'Microsoft.Graph.Authentication.Core, Version=2.34.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' does not
have an implementation.
At line:1 char:1

• Import-Module Microsoft.Graph.Authentication -Debug

•   + CategoryInfo          : NotSpecified: (:) [Import-Module], TypeLoadException
    + FullyQualifiedErrorId : System.TypeLoadException,Microsoft.PowerShell.Commands.ImportModuleCommand
  

</details>


### Configuration

$PSVersionTable

Name                           Value
----                           -----
PSVersion                      5.1.26100.7462
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.26100.7462
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

Windows 11 25H2
x64

### Other information

_No response_

[BohrenAn]

It seems the Problem only affects PowerShell 5.1

PowerShell 5.1

PowerShell 7.5.4

Kind Regards
Andres

[gavinbarron]

Thanks for reporting this @BohrenAn, I'm really sorry that you're being impacted here. I specifically tested this on PowerShell 5.1 prior to us releasing to try and reduce the likelihood customers having a bad time with our latest change to the Authentication module.

This suggests something environment related is going on.

Would you please be able to run the following and provide the output to help here?

Install-Module Microsoft.Graph.Authentication -RequiredVersion 2.34.0
Import-Module Microsoft.Graph.Authentication -RequiredVersion 2.34.0
Connect-MgGraph
Get-Module
$PSVersionTable

As a point of comparision, here's what I get on my dev box.

Windows PowerShell
Copyright (C) Microsoft Corporation. All rights reserved.

Install the latest PowerShell for new features and improvements! https://aka.ms/PSWindows

PS C:\Users\gavinbarron> Install-Module Microsoft.Graph.Authentication -RequiredVersion 2.34.0
PS C:\Users\gavinbarron> Import-Module Microsoft.Graph.Authentication -RequiredVersion 2.34.0
PS C:\Users\gavinbarron> Connect-MgGraph
Welcome to Microsoft Graph!

Connected via delegated access using 14d82eec-204b-4c2f-b7e8-296a70dab67e
Readme: https://aka.ms/graph/sdk/powershell
SDK Docs: https://aka.ms/graph/sdk/powershell/docs
API Docs: https://aka.ms/graph/docs

NOTE: You can use the -NoWelcome parameter to suppress this message.
NOTE: Sign in by Web Account Manager (WAM) is enabled by default on Windows systems and cannot be disabled. Any setting stating otherwise will be ignored.

PS C:\Users\gavinbarron> Get-Module

ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Script     2.34.0     Microsoft.Graph.Authentication      {Add-MgEnvironment, Connect-MgGraph, Disconnect-MgGraph, G...
Manifest   3.1.0.0    Microsoft.PowerShell.Management     {Add-Computer, Add-Content, Checkpoint-Computer, Clear-Con...
Manifest   3.1.0.0    Microsoft.PowerShell.Utility        {Add-Member, Add-Type, Clear-Variable, Compare-Object...}
Script     1.4.8.1    PackageManagement                   {Find-Package, Find-PackageProvider, Get-Package, Get-Pack...
Script     2.2.5      PowerShellGet                       {Find-Command, Find-DscResource, Find-Module, Find-RoleCap...
Script     2.0.0      PSReadLine                          {Get-PSReadLineKeyHandler, Get-PSReadLineOption, Remove-PS...


PS C:\Users\gavinbarron>  $PSVersionTable

Name                           Value
----                           -----
PSVersion                      5.1.26100.6899
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.26100.6899
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

PS C:\Users\gavinbarron> [System.AppDomain]::CurrentDomain.GetAssemblies() |
>> Where-Object Location |
>> Sort-Object -Property FullName |
>> Select-Object -Property FullName

FullName
--------
Azure.Core, Version=1.50.0.0, Culture=neutral, PublicKeyToken=92742159e12e44c8
Azure.Identity, Version=1.17.1.0, Culture=neutral, PublicKeyToken=92742159e12e44c8
Azure.Identity.Broker, Version=1.3.1.0, Culture=neutral, PublicKeyToken=92742159e12e44c8
Microsoft.Bcl.AsyncInterfaces, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
Microsoft.CSharp, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
Microsoft.Graph.Authentication, Version=2.34.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.Graph.Authentication.Core, Version=2.34.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.Identity.Client, Version=4.78.0.0, Culture=neutral, PublicKeyToken=0a613f4dd989e8ae
Microsoft.Identity.Client.Broker, Version=4.78.0.0, Culture=neutral, PublicKeyToken=0a613f4dd989e8ae
Microsoft.Identity.Client.Extensions.Msal, Version=4.78.0.0, Culture=neutral, PublicKeyToken=0a613f4dd989e8ae
Microsoft.Identity.Client.NativeInterop, Version=0.19.4.0, Culture=neutral, PublicKeyToken=0a613f4dd989e8ae
Microsoft.IdentityModel.Abstractions, Version=8.15.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.Management.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement, Version=3.0.0.1, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.ArchiverProviders, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.CoreProviders, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.MetaProvider.PowerShell, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.MsiProvider, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.MsuProvider, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.NuGetProvider, Version=3.0.0.2, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.Commands.Diagnostics, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.Commands.Management, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.Commands.Utility, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.ConsoleHost, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.PackageManagement, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.PSReadLine, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.Security, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.WSMan.Management, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed
System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Buffers, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
System.ClientModel, Version=1.8.0.0, Culture=neutral, PublicKeyToken=92742159e12e44c8
System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Configuration.Install, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Diagnostics.DiagnosticSource, Version=8.0.0.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
System.DirectoryServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Dynamic, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Management, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Management.Automation, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
System.Memory, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
System.Net.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Numerics, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Numerics.Vectors, Version=4.1.6.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Runtime.CompilerServices.Unsafe, Version=6.0.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Runtime.InteropServices.RuntimeInformation, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Runtime.Serialization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Security, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Security.Cryptography.ProtectedData, Version=4.0.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Text.Encodings.Web, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
System.Text.Json, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
System.Threading.Tasks.Extensions, Version=4.2.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
System.Transactions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.ValueTuple, Version=4.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Xml.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089

[BohrenAn]

Hi @gavinbarron

Here are the Results you requested

PS C:> Install-Module Microsoft.Graph.Authentication -RequiredVersion 2.34.0 -Force
PS C:> Import-Module Microsoft.Graph.Authentication -RequiredVersion 2.34.0
Import-Module : Method 'GetTokenAsync' in type
'Microsoft.Graph.PowerShell.Authentication.Core.Utilities.UserProvidedTokenCredential' from assembly
'Microsoft.Graph.Authentication.Core, Version=2.34.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' does not
have an implementation.
At line:1 char:1

• Import-Module Microsoft.Graph.Authentication -RequiredVersion 2.34.0

•   + CategoryInfo          : NotSpecified: (:) [Import-Module], TypeLoadException
    + FullyQualifiedErrorId : System.TypeLoadException,Microsoft.PowerShell.Commands.ImportModuleCommand
  
  

PS C:> Connect-MgGraph
Connect-MgGraph : The 'Connect-MgGraph' command was found in the module 'Microsoft.Graph.Authentication', but the
module could not be loaded. For more information, run 'Import-Module Microsoft.Graph.Authentication'.
At line:1 char:1

• Connect-MgGraph

•   + CategoryInfo          : ObjectNotFound: (Connect-MgGraph:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CouldNotAutoloadMatchingModule
  
  

PS C:\> Get-Module

ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Script     0.9.1      M365PSProfile                       {Add-M365PSProfile, Disconnect-All, Get-M365StandardModule...
Manifest   3.1.0.0    Microsoft.PowerShell.Management     {Add-Computer, Add-Content, Checkpoint-Computer, Clear-Con...
Binary     1.2.0      Microsoft.PowerShell.PSResourceGet  {Compress-PSResource, Find-PSResource, Get-InstalledPSReso...
Manifest   3.1.0.0    Microsoft.PowerShell.Utility        {Add-Member, Add-Type, Clear-Variable, Compare-Object...}
Script     1.4.4      PackageManagement                   {Find-Package, Find-PackageProvider, Get-Package, Get-Pack...
Script     2.2.5      PowerShellGet                       {Find-Command, Find-DscResource, Find-Module, Find-RoleCap...
Script     2.0.0      PSReadLine                          {Get-PSReadLineKeyHandler, Get-PSReadLineOption, Remove-PS...


PS C:\> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      5.1.26100.7462
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.26100.7462
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

PS C:\> [System.AppDomain]::CurrentDomain.GetAssemblies() | Where-Object Location | Sort-Object -Property FullName | Select-Object -Property FullName

FullName
--------
Azure.Core, Version=1.50.0.0, Culture=neutral, PublicKeyToken=92742159e12e44c8
Microsoft.CertificateServices.PKIClient.Cmdlets, Version=10.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.CSharp, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
Microsoft.Graph.Authentication, Version=2.34.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.Graph.Authentication.Core, Version=2.34.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.Management.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement, Version=3.0.0.1, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.ArchiverProviders, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.CoreProviders, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.MetaProvider.PowerShell, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.MsiProvider, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.MsuProvider, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PackageManagement.NuGetProvider, Version=3.0.0.2, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.Commands.Diagnostics, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.Commands.Management, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.Commands.Utility, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.ConsoleHost, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.PackageManagement, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.PSReadLine, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.PowerShell.PSResourceGet, Version=1.1.0.1, Culture=neutral, PublicKeyToken=null
Microsoft.PowerShell.Security, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Microsoft.WSMan.Management, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed
System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.ClientModel, Version=1.8.0.0, Culture=neutral, PublicKeyToken=92742159e12e44c8
System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Configuration.Install, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.DirectoryServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.IO.Compression, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.IO.Compression.FileSystem, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Management, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Management.Automation, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
System.Net.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Numerics, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Threading.Tasks.Extensions, Version=4.2.0.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
System.Threading.Tasks.Extensions, Version=4.2.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
System.Transactions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Xml.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089

[albertvannijhuis]

Hi! I'm experiencing the same issue with Microsoft.Graph.Authentication version 2.34.0 in an Azure Automation runbook using PowerShell 5.1 since this morning. The runbook worked perfectly before, but now fails with: "Method 'GetTokenAsync' in type 'Microsoft.Graph.PowerShell.Authentication.Core.Utilities.UserProvidedTokenCredential' from assembly 'Microsoft.Graph.Authentication.Core, Version=2.34.0.0' does not have an implementation."

[mmcdermo2]

We're seeing this also in our Azure DevOps pipelines running on Server 2019 / 2022 with PowerShell 5.1

Get-Module Microsoft.Graph -ListAvailable
2025-12-23T09:29:31.2375459Z Name              : Microsoft.Graph
2025-12-23T09:29:31.2375960Z Path              : C:\Program Files\WindowsPowerShell\Modules\Microsoft.Graph\2.34.0\Microsoft.Graph.psd1
2025-12-23T09:29:31.2376711Z Description       : Microsoft Graph PowerShell module
2025-12-23T09:29:31.2377203Z Guid              : fceec1eb-c2e8-4b2b-a120-0fab3f0d7b47
2025-12-23T09:29:31.2377591Z Version           : 2.34.0
2025-12-23T09:29:31.2378005Z ModuleBase        : C:\Program Files\WindowsPowerShell\Modules\Microsoft.Graph\2.34.0
2025-12-23T09:29:31.2378418Z ModuleType        : Manifest
2025-12-23T09:29:31.2378991Z PrivateData       : {PSData}
2025-12-23T09:29:31.2380089Z AccessMode        : ReadWrite
2025-12-23T09:29:31.2380473Z ExportedAliases   : {}
2025-12-23T09:29:31.2380816Z ExportedCmdlets   : {}
2025-12-23T09:29:31.2381180Z ExportedFunctions : {}
2025-12-23T09:29:31.2381976Z ExportedVariables : {}
2025-12-23T09:29:31.2382313Z NestedModules     : {}
2025-12-23T09:29:31.2382429Z 
2025-12-23T09:29:31.3605482Z 

Get-Module Microsoft.Graph.Authentication -ListAvailable
2025-12-23T09:29:31.3610598Z Name              : Microsoft.Graph.Authentication
2025-12-23T09:29:31.3647218Z Path              : C:\Program Files\WindowsPowerShell\Modules\Microsoft.Graph.Authentication\2.34.0\Microsoft.Graph.Au
2025-12-23T09:29:31.3647762Z                     thentication.psd1
2025-12-23T09:29:31.3648177Z Description       : Microsoft Graph PowerShell Authentication Module.
2025-12-23T09:29:31.3648586Z Guid              : 883916f2-9184-46ee-b1f8-b6a2fb784cee
2025-12-23T09:29:31.3648898Z Version           : 2.34.0
2025-12-23T09:29:31.3649256Z ModuleBase        : C:\Program Files\WindowsPowerShell\Modules\Microsoft.Graph.Authentication\2.34.0
2025-12-23T09:29:31.3649630Z ModuleType        : Script
2025-12-23T09:29:31.3649878Z PrivateData       : {PSData}
2025-12-23T09:29:31.3650435Z AccessMode        : ReadWrite
2025-12-23T09:29:31.3653123Z ExportedAliases   : {[Connect-Graph, Connect-Graph], [Disconnect-Graph, Disconnect-Graph], [Invoke-GraphRequest, 
2025-12-23T09:29:31.3653561Z                     Invoke-GraphRequest], [Invoke-MgRestMethod, Invoke-MgRestMethod]}
2025-12-23T09:29:31.3656535Z ExportedCmdlets   : {[Connect-MgGraph, Connect-MgGraph], [Disconnect-MgGraph, Disconnect-MgGraph], [Get-MgContext, 
2025-12-23T09:29:31.3657064Z                     Get-MgContext], [Invoke-MgGraphRequest, Invoke-MgGraphRequest]...}
2025-12-23T09:29:31.3658368Z ExportedFunctions : {[Find-MgGraphCommand, Find-MgGraphCommand], [Find-MgGraphPermission, Find-MgGraphPermission]}
2025-12-23T09:29:31.3658684Z ExportedVariables : {}
2025-12-23T09:29:31.3658942Z NestedModules     : {Microsoft.Graph.Authentication, Microsoft.Graph.Authentication.Core}
2025-12-23T09:29:31.3659085Z 
2025-12-23T09:29:31.3713867Z

Get-Host
2025-12-23T09:29:31.3717947Z Name             : ConsoleHost
2025-12-23T09:29:31.3718324Z Version          : 5.1.17763.8024
2025-12-23T09:29:31.3719471Z InstanceId       : 5ebe4f40-0d40-415c-935f-112cd9b69c53
2025-12-23T09:29:31.3720163Z UI               : System.Management.Automation.Internal.Host.InternalHostUserInterface
2025-12-23T09:29:31.3720637Z CurrentCulture   : en-US
2025-12-23T09:29:31.3721481Z CurrentUICulture : en-US
2025-12-23T09:29:31.3722035Z PrivateData      : Microsoft.PowerShell.ConsoleHost+ConsoleColorProxy
2025-12-23T09:29:31.3723023Z DebuggerEnabled  : True
2025-12-23T09:29:31.3723378Z IsRunspacePushed : False
2025-12-23T09:29:31.3724129Z Runspace         : System.Management.Automation.Runspaces.LocalRunspace
2025-12-23T09:29:31.3724367Z 

Import-Module Microsoft.Graph.Authentication
2025-12-23T09:29:31.8600822Z ##[error]Method 'GetTokenAsync' in type 'Microsoft.Graph.PowerShell.Authentication.Core.Utilities.UserProvidedTokenCredential' from assembly 'Microsoft.Graph.Authentication.Core, Version=2.34.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' does not have an implementation.

On my Windows 11 local machine, where I have Windows PowerShell and PowerShell core, I don't have the issue, even with version 2.34.0

PS C:\WINDOWS\system32> Get-Module microsoft.graph.authentication -ListAvailable


    Directory: C:\Program Files\WindowsPowerShell\Modules


ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Script     2.34.0     Microsoft.Graph.Authentication      {Connect-MgGraph, Disconnect-MgGraph, Get-MgContext, Invok...


PS C:\WINDOWS\system32> Import-Module microsoft.graph.authentication
PS C:\WINDOWS\system32> connect-mpgraph

[mmcdermo2]

Sorry, I just clarify - when I said I don't have the issue on my local Windows 11 machine, I meant I don't have it on Windows PowerShell 5.1 with 2.34.0

[gavinbarron]

Thanks for the additional info folks.

Given the error message, "[method] in [assembly] does not have an implementation", it's smelling a bit like a dotnet issue to me. So, I have more questions about your environments. Specifically, what versions of .NET and .NET Framework are available in your Windows PowerShell 5.1 shells.

$release = Get-ItemPropertyValue -LiteralPath 'HKLM:SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full' -Name Release
switch ($release) {
    { $_ -ge 533320 } { $version = '4.8.1 or later'; break }
    { $_ -ge 528040 } { $version = '4.8'; break }
    { $_ -ge 461808 } { $version = '4.7.2'; break }
    { $_ -ge 461308 } { $version = '4.7.1'; break }
    { $_ -ge 460798 } { $version = '4.7'; break }
    { $_ -ge 394802 } { $version = '4.6.2'; break }
    { $_ -ge 394254 } { $version = '4.6.1'; break }
    { $_ -ge 393295 } { $version = '4.6'; break }
    { $_ -ge 379893 } { $version = '4.5.2'; break }
    { $_ -ge 378675 } { $version = '4.5.1'; break }
    { $_ -ge 378389 } { $version = '4.5'; break }
    default { $version = $null; break }
}

if ($version) {
    Write-Host -Object ".NET Framework Version: $version"
} else {
    Write-Host -Object '.NET Framework Version 4.5 or later is not detected.'
}

dotnet --list-runtimes

Additionally, I'm curious as to why you all are using Windows PowerShell 5.1 instead of 7.5? Is there some blocker?

To be completely transparent here, I'm currently on leave and if mother nature plays ball, I'll be offline and skiing until the new year from tomorrow. I apologize that this new version is causing you all problems for you and we'll be working to address them when we return in the new year.

For now, I'd either pin my automation on PS5.1 to 2.33, or if possible, migrate to PS7.5, which you all should be planning on in the longer term anyway.