Error while accessing ODATA Service from a SAP UI 5 Application

Hi Experts,

I'm a beginner in SAP UI 5 application development , I tried to consume a ODATA service from SAP Netweaver Gateway demo system (https://sapes1.sapdevcenter.com:443/sap/opu/odata/iwfnd/CATALOGSERVICE/).

My Connectivity.js file looks as below

I'm getting the below error while running the application .

GET http://localhost:8080/CatalogAPP/proxy/http/sapes1.sapdevcenter.com/sap/opu/odata/iwfnd/CATALOGSERVICE/$metadata?sap-statistics=true 500 (Internal Server Error)

I referred this blog   Creating a SAPUI5 starter application with the Gateway Eclipse plugin

Kindly provide some inputs to solve this issue.

Regards

Saravana