I have a script that is used with the EXE/Script Advanced Sensor. If I let it run manually, it gives me a correct looking XML answer.

<prtg>
  <result>
    <channel>PasswordSyncStatus</channel>
    <value>1</value>
  </result>
  <result>
    <channel>LastDirSync</channel>
    <value>16.8841946583333</value>
    <float>1</float>
  </result>
  <result>
    <channel>LastPWSync</channel>
    <value>23.9675279916667</value>
    <float>1</float>
  </result>
  <result>
    <channel>SyncedUser</channel>
    <value>121</value>
  </result>
</prtg>

But PRTG keeps saying, that it is malformated.

Error: XML: The returned XML does not match the expected schema. (code: PE233) -- JSON: The returned JSON does not match the expected structure (Invalid JSON.). (code: PE231)

I have no idea, what's wrong with it.

Article Comments

Hi Joerg,

From first look your output seems to be fine. Did you use write-host to get this result? Please try to use write-output since we did some security changes and therefore write-host won't work anymore.

Kind regards

Felix Wiesneth - Team Tech Support


Dec, 2021 - Permalink

I tried with both, but it didn't help.

This is how teh output is created.

# Results for PRTG Sensor with Channels
$XML = "<prtg>"
$XML += "<result><channel>PasswordSyncStatus</channel><value>$PasswordSync</value></result>"
$XML += "<result><channel>LastDirSync</channel><value>$DirSync</value><float>1</float></result>"
$XML += "<result><channel>LastPWSync</channel><value>$PWSync</value><float>1</float></result>"
$XML += "<result><channel>SyncedUser</channel><value>$SyncedUser</value></result>"
$XML += "<result><channel>SyncedGroup</channel><value>$SyncedGroups</value></result>"
$XML += "<result><channel>ServicePrincipalPasswordTimer</channel><value>$SP_PRTG_Monitoring_Days_left</value></result>"
$XML += "</prtg>"

#Just to make it clean XML code
Function WriteXmlToScreen ([xml]$xml) 
{
    $StringWriter = New-Object System.IO.StringWriter;
    $XmlWriter = New-Object System.Xml.XmlTextWriter $StringWriter;
    $XmlWriter.Formatting = "indented";
    $xml.WriteTo($XmlWriter);
    $XmlWriter.Flush();
    $StringWriter.Flush();
    Write-Output $StringWriter.ToString();
}
#WriteXmlToScreen "$XML"
write-output "$XML"

Dec, 2021 - Permalink

Hi Joerg,

I tried to recreate the output with your script and with write-output I got no XML formatted output. You will need to change $XML so that there is a XML formatted output.

Kind regards

Felix Wiesneth - Team Tech Support


Dec, 2021 - Permalink