Cannot process argument because the value of argument "name" is not valid

[BernieWhite]

Cannot process argument because the value of argument "name" is not valid

[BernieWhite]

Thanks for the detail @tonyskidmore.

Currently we believe this is a regression introduced in PS 7.4.x. PowerShell/PowerShell#21147

The issue affects the default view set by PSRule. The issue is noticable when running with the cmdlet interactively, and shouldn't affect most automated pipelines.

As a workaround until the fix ships you can update your command-line to select the specific properties you want as follows:

Invoke-PSRule -InputPath "$PWD/out/" -Module 'PSRule.Rules.Azure' | Select-Object RuleName, Outcome, Recommendation

[tonyskidmore]

@BernieWhite I have just started looking at PSRule and have come across this issue trying to get started using PowerShell 7.4.1.

Export-AzRuleData -OutputPath "$PWD/out/"
Invoke-PSRule -InputPath "$PWD/out/" -Module 'PSRule.Rules.Azure'

format-default: Cannot process argument because the value of argument "name" is not valid. Change the value of the "name" argument and run the operation again.

If I run the same command from PowerShell 7.3..11 it works, i.e., I see output:

cmd.exe
cd C:\tools\PowerShell-7.3.11
pwsh

Get-Host

Name             : ConsoleHost
Version          : 7.3.11
InstanceId       : 0faf6a9e-eab1-47d2-aa9e-95ce70c48f2e
UI               : System.Management.Automation.Internal.Host.InternalHostUserInterface
CurrentCulture   : en-GB
CurrentUICulture : en-GB
PrivateData      : Microsoft.PowerShell.ConsoleHost+ConsoleColorProxy
DebuggerEnabled  : True
IsRunspacePushed : False
Runspace         : System.Management.Automation.Runspaces.LocalRunspace

Invoke-PSRule -InputPath "$PWD/out/" -Module 'PSRule.Rules.Azure'

The problem for me is this is running in CD agents that have PowerShell 7.4.1 installed by default and I didn't want to start building containers just to do some initial POC testing in a pipeline.