Why app download is simply ongoiining for an infinite time from play store?

[AC Question]

I am using Samsung Grade prime & was able to download app from play store.
Probably last week I got a notification that my whats version is outdated. Then I first uninstall whatsapp & tried to download latest available app from playstore.
After that I am having problem downloading app from platstore & it seems continuing long ...

 

[the tall guy]

try cancelling the download and trying again. Make sure you have sufficient space on your phone, your signal / wifi signal should also be good.