google api - Geocoder is not working in android -

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i working on program takes address input user , navigates google map particular location,i have used getfromlocationname() method of geocoder not getting output, little afraid because not able understand meaning of below phrase given in android site

"the geocoder class requires backend service not included in core android framework. geocoder query methods return empty list if there no backend service in platform. use ispresent() method determine"

if end service not present how it..

but when try use ispresent() method giving me compilation error,

plz suggest me, response appreciated


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