PSScriptAnalyzer is unavailable when using the specific PowerShell statement

[msl0]

System Details

System Details Output

### VSCode version: 1.51.1 e5a624b788d92b8d34d1392e4c4d9789406efe8f x64

### VSCode extensions:
ms-vscode.powershell@2020.6.0
ms-vscode.powershell-preview@2020.9.0


### PSES version: 2.3.0.0

### PowerShell version:

Name                           Value
----                           -----
PSVersion                      5.1.19041.610
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.19041.610
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

Issue Description

PSScriptAnalyzer not works code when using PSUseCompatibleCmdlets rule only with with following.

Works when I run PSScriptAnalyzer from PowerShell Integrated Console via command Invoke-ScriptAnalyzer <filename.ps1>. When coment last line or PSUseCompatibleCmdlets rule section in PSScriptAnalyzer settings file it works

PSScriptAnalyzerSettings.psd1

@{
    Rules = @{
        PSUseCompatibleCmdlets  = @{
            'compatibility' = @("desktop-2.0-windows")
        }
        PSUseCompatibleCommands = @{
            # Turns the rule on
            Enable         = $true

            # Lists the PowerShell platforms we want to check compatibility with
            TargetProfiles = @(
                'ubuntu_x64_18.04_7.0.0_x64_3.1.2_core'
            )
        }
    }
}

I tested when ms-vscode.powershell-preview was enabled and ms-vscode.powershell disabled, and next time when ms-vscode.powershell-preview was disabled and ms-vscode.powershell enabled - same results

Expected Behaviour

Script analysis should works.

Actual Behaviour

Script analysis not works.

Attached Logs

I sent the logs by e-mail to vscode-powershell@microsoft.com
Topic: [Issue 3155] PSScriptAnalyzer is unavailable when using the specific PowerShell statement - logs

Same problem as issue 3090, but the old one has closed and the problem still exists

[rjmholt]

So it looks like the UseCompatibleCmdlets rule is returning a null extent for Get-ScheduledTask:

The actual issue lies here, in PSScriptAnalyzer.

There's not much we can do to repair what we're given in PSES, but we can skip over the result so that it doesn't crash the script analysis run.

[rjmholt]

This issue can actually be reproduced with just PSScriptAnalyzer itself:

$script = @'
New-ScheduledJobOption
$TaskName = "Adobe Acrobat Update Task"
$TaskPath = "\"
Write-Output "##[debug] Current task state is $((Get-ScheduledTask -TaskName $TaskName -TaskPath $TaskPath).State)"
'@

$settings = @{
    Rules = @{
        PSUseCompatibleCmdlets  = @{
            'compatibility' = @("desktop-2.0-windows")
        }
        PSUseCompatibleCommands = @{
            # Turns the rule on
            Enable         = $true

            # Lists the PowerShell platforms we want to check compatibility with
            TargetProfiles = @(
                'ubuntu_x64_18.04_7.0.0_x64_3.1.2_core'
            )
        }
    }
}

Invoke-ScriptAnalyzer -ScriptDefinition $script -Settings $settings

[rjmholt]

@msl0 if you disable the PSUseCompatibleCmdlets rule, this will work again. I've also started a branch where we catch this error in the future, so we do what I describe above instead.

[msl0]

So as far as I understand in a future version of the extension, if a similar problem occurs, the specific rule will be skipped in order not to block the entire analysis, right?