Value should be a JSON object

[Harroguk]

I am trying to use LLD using Zabbix 2.0.3 Server installed on Linux

I am using a powershell script to generate the JSON below...

{"data":[
{"{#SERVERSERVICE}":"MSSQLSERVER","{#AGENTSERVICE}":"SQLSERVERAGENT","{#PERFCOUNTER}":"SQLSERVER"}
]}

This is picked up using the userparameter...

UserParameter=discovery.instances,powershell C:\PROGRA~1\ZABBIX~1\\Get-MSSQL-Instancenames.ps1

However in Zabbix the Discovery rule is displaying as Value should be a JSON object

I have checked the JSON with http://jsonlint.com/ and it appears to be good.

Can anyone point me to where I may be going wrong?

Thanks

Harroguk