Re: User is not authorized to use destination (package: ..., name: ...)

The package hierarchy that you show in your screen shot is the not the same as the one in your code or the error message.  In your code your package is testApp, but the package hierarchy in your screen shot is LatestXS.Bhupender.httpdestination. I would assume your source code is incorrect here shouldn't be using testApp as the package path to the Images.xshttpdest.