Are you encountering the following error message when working with Azure in PowerShell and running the command Get-AzVirtualNetwork?

'Microsoft.Azure.Management.Network.Models.SecurityRule', 
on 'T MaxInteger[T](System.Collections.Generic.IEnumerable`1[T])' 
violates the constraint of type 'T'.

This error can be caused by an incompatibility between PowerShell 7 and the Az Module and incompatibilty with .NET 7. To fix this issue, try the following steps:

  1. Upgrade to the latest versions of PowerShell 7 and the Az module.

  2. If the issue persists, remove all versions of the Az Module on your system by using the command Uninstall-Module Az -AllVersions.

  3. Examine your module paths by using $env:PSModulePath -split ';'. This will show you all the paths to PowerShell modules. Manually remove any Az modules from those paths.

  4. Finally, reinstall the Az module again using PowerShell 7 as Administrator using the command Install-Module Az -Scope AllUsers

This should resolve the issue and get your Azure PowerShell scripts running smoothly again.

Hope this helps!