The Powershell script works but PRTG can not execute it properly.

Hello scripting support,

Here' my probleme :

$user = "admin"

##mdp

$path = "C:\my\path\to\my\file\myHashPassowrd.txt"

$password = cat $path | convertto-securestring

$cred = New-Object System.Management.Automation.PSCredential($user, $password)

##bypass self-signed certificate

Add-Type @"

        using System.Net;

        using System.Security.Cryptography.X509Certificates;

        public class TrustAllCertsPolicy : ICertificatePolicy

        {

             public bool CheckValidationResult(

             ServicePoint srvPoint, X509Certificate certificate,

             WebRequest request, int certificateProblem)

             {

                 return true;

            }

        }

"@

[System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy

$WebRequest=Invoke-WebRequest -URI 'https://myWifiController.html' -Credential $cred -SessionVariable cisco 

$current_aps = $WebRequest.AllElements | where {$_.name -like "current_aps"} | select value

$current_down_aps = $WebRequest.AllElements | where {$_.name -like "current_down_aps"} | select value

$current_up_aps = $WebRequest.AllElements | where {$_.name -like "current_up_aps"} | select value

Write-Host "<prtg>"

Write-Host "<result>"

Write-Host "<channel>Total d'AP</channel>"

Write-Host "<value>"$current_aps.value"</value>"

Write-Host "</result>"

Write-Host "<result>"

Write-Host "<channel>AP DOWN</channel>"

Write-Host "<value>"$current_down_aps.value"</value>"

Write-Host "</result>"

Write-Host "<result>"

Write-Host "<channel>AP UP</channel>"

Write-Host "<value>"$current_up_aps.value"</value>"

Write-Host "</result>"

Write-Host "<text>Nombre d'AP Down : "$current_down_aps.value"/"$current_aps.value"</text>"

Write-Host "</prtg>"

This script works, here is the output:

<prtg>

<result>

<channel>Total d'AP</channel>

<value> 52 </value>

</result>


<result>

<channel>AP DOWN</channel>

<value> 0 </value>

</result>

<result>

<channel>AP UP</channel>

<value> 52 </value>

</result>

<text>Nombre d'AP Down :  0 / 52 </text>

</prtg>

But, Here is the sensor log :

Add-Type : (0)ÿ: Impossible de trouver le fichier source 'C:\Windows\TEMP\waip3m11.0.cs'
(1)ÿ:         using System.Net;
Au caractŠre C:\Program Files (x86)\PRTG Network Monitor\custom 
sensors\EXEXML\script_CISCO_Controller_AP_status_v4.ps1:34 : 1
+ Add-Type @"
+ ~~~~~~~~~~~
    + CategoryInfo          : InvalidData : (error CS2001: I...\waip3m11.0.cs':CompilerError) [Add-Type], Exception
    + FullyQualifiedErrorId : SOURCE_CODE_ERROR,Microsoft.PowerShell.Commands.AddTypeCommand
 
Add-Type : (0)ÿ: Aucun fichier source sp‚cifi‚
(1)ÿ:         using System.Net;
Au caractŠre C:\Program Files (x86)\PRTG Network Monitor\custom 
sensors\EXEXML\script_CISCO_Controller_AP_status_v4.ps1:34 : 1
+ Add-Type @"
+ ~~~~~~~~~~~
    + CategoryInfo          : InvalidData : (warning CS2008:...source sp‚cifi‚:CompilerError) [Add-Type], Exception
    + FullyQualifiedErrorId : SOURCE_CODE_ERROR,Microsoft.PowerShell.Commands.AddTypeCommand
 
Add-Type : Impossible d'ajouter un type. Des erreurs de compilation se sont produites.
Au caractŠre C:\Program Files (x86)\PRTG Network Monitor\custom 
sensors\EXEXML\script_CISCO_Controller_AP_status_v4.ps1:34 : 1
+ Add-Type @"
+ ~~~~~~~~~~~
    + CategoryInfo          : InvalidData : (:) [Add-Type], InvalidOperationException
    + FullyQualifiedErrorId : COMPILER_ERRORS,Microsoft.PowerShell.Commands.AddTypeCommand
 
New-Object : Le type [TrustAllCertsPolicy] est introuvable: v‚rifiez que l'assembly dans lequel il se trouve est 
charg‚.
Au caractŠre C:\Program Files (x86)\PRTG Network Monitor\custom 
sensors\EXEXML\script_CISCO_Controller_AP_status_v4.ps1:49 : 55
+ [System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPo ...
+                                                       ~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidType: (:) [New-Object], PSArgumentException
    + FullyQualifiedErrorId : TypeNotFound,Microsoft.PowerShell.Commands.NewObjectCommand
 
Invoke-WebRequest : La connexion sous-jacente a ‚t‚ ferm‚e: Impossible d'‚tablir une relation de confiance pour le 
canal s‚curis‚ SSL/TLS.
Au caractŠre C:\Program Files (x86)\PRTG Network Monitor\custom 
sensors\EXEXML\script_CISCO_Controller_AP_status_v4.ps1:52 : 13
+ $WebRequest=Invoke-WebRequest -URI 'https://myWifiController.html ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebEx 
   ception
    + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand
 
0:   /  </text> </prtg> 

So what am I doing wrong ?

Cordially.

powershell prtg script