ArcGIS Server Results Not showing up - (Problem caused by using specified extent of shapefile)

ArcGIS Server Results Not showing up - (Problem caused by using specified extent of shapefile)

While working on my Web Mapping Project i faced a problem, my buffer function which was functioning earlier started to show no data. And this was done after i republished the services (shapefiles) with the specified extent .

For Publishing shape file on specified extent 
see this Article

Or
To remove this warning 
Publish Shape File Warning 30003: Layer draws at all scale ranges
see this Article

In actual the problem occurred due to the reason that i had a shape file of country level and other 5 of city level, and i specified the extent of city level shape files using ArcGIS for Desktop and then published them, while in my buffer script i specified the extent of country level shape file, So the results from city level shape file were not showing up.