[BUG] Included Micrsoft.Graph.Core.dll dependency conflict with Microft.Graph module

[jnkgee]

Reporting an Issue

Installing PnP.Powershell from PSGallery 2.4 includes a copy of Micrsoft.Graph.Core.dll version 1.25.1. This conflicts with the version of this dll installed by Microsoft.Graph 2.x.x

Expected behavior

PnP.Powershell and Micrsoft.Graph should both be usable in a single Powershell Session.

Actual behavior

Actual behaviour depends on which module is connected first.

If PnP.Powershell connects first, Connect-Graph (using Certificate authentication) will throw errors similar to:
ClientCertificateCredential authentication failed: Could not load type 'Microsoft.Identity.Client.BaseAbstractApplicationBuilder`1' from assembly 'Microsoft.Identity.Client, Version=4.50.0.0,

If Microsoft.Graph is loaded first, and then PnP.Powershell, connection will succeed.

However, calls to Get-MgUser will result in errors:
Could not load type 'Microsoft.Graph.Authentication.AzureIdentityAccessTokenProvider' from assembly 'Microsoft.Graph.Core, Version=1.25.1.0

Steps to reproduce behavior

Clear out all old versions of PnP.Powershell and Microsoft.Graph.
Install PnP.Powershell 2.4.0 and Microsoft.Graph 2.x.x (tested with 2.16.0 and 2.17.0 and several others)
Attempt to connect to PnP.Powershell and Micrsoft.Graph using Certificate authentication.

What is the version of the Cmdlet module you are running?

2.4.0

Which operating system/environment are you running PnP PowerShell on?

• [ X] Windows
• Linux
• MacOS
• Azure Cloud Shell
• Azure Functions
• Other : please specify

Steps to correct

Locate Microsoft.Graph.Core.dll from the module storage Modules\Microsoft.Graph.Authentication\2.x.x\dependencies\Core
Copy this file to Modules\PnP.Powershell\2.4.0, overwriting the version 1.25.1

Connect-Graph
Connect-PnPOnline
.. work as normal.

PnP.Powershell appears to be happy to use the current version (2.17.0) of this DLL, but Graph v2.x.x cannot function if the 1.25.1 dll has been loaded.

[veronicageek]

There's already an issue opened #3637 with conflicts for MSGraph.