[BUG] Unable to attach a group to classic modern team site

[gvmadhusudhan]

Notice

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1. Are you using Invoke-PnPSiteTemplate or Get-PnPSiteTemplate? The issue is most likely related to the Provisioning Engine. The Provisioning engine is not located in the PowerShell repo. Please report the issue here: https://github.com/pnp/pnpframework/issues.
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Reporting an Issue or Missing Feature

Issue when attaching a Group to classic sharepoint team site

Expected behavior

Attach a M365 Group to the classic team site

Actual behavior

Get following error when attempting to execute the command
Add-PnPMicrosoft365GroupToSite : An error occurred while processing this request.
At line:1 char:2

• Add-PnPMicrosoft365GroupToSite -Url https://www.sharepiont.com/sites ...

•  + CategoryInfo          : WriteError: (:) [Add-PnPMicrosoft365GroupToSite], ServerException
   + FullyQualifiedErrorId : EXCEPTION,PnP.PowerShell.Commands.Admin.AddMicrosoft365GroupToSite
  
  

Steps to reproduce behavior

Run the command

Add-PnPMicrosoft365GroupToSite -Url "" -Alias "" -DisplayName ""

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

2.5.0

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

• Windows

[gautamdsheth]

Not enough information, will move it to a discussion. Can't repro either.