local web-ide unable to connect to data source - north wind

I have succesfully installed the local web ide. But when I tried to connect to the northwind data services through the service url(URL=services.odata.org/http://services.odata.org/http://services.odata.org/http://services.odata.org/)

Here is the northwind file config

#

#Fri Mar 27 12:52:23 UTC 2015

Name=Northwind

URL=http://services.odata.org

Type=HTTP

Authentication=NoAuthentication

Description=North Wind Data Services

WebIDEEnabled=true

WebIDESystem=Northwind

WebIDEUsage=odata_gen

I used the ProxyType=Internet and removed it..

and  I am getting an error.

'Unable to process the request due to a failure in the Data Source. For more details, see the Data Source log'. when I did f12 it was trying to access the northwind meta data and there is 500( Server Error) through the webdispatcher