What is the Error of insufficient memory Space in android phones?When even you have enough memory..

you might have prone to such an error sometime while downloading from playstore-

Error Downloading "app name" There is insufficient space on the device,even after having plenty of space..

Step 1)-Try after cleaning the Cached data in Settings>Storsge>Cached data;

or

Step 2) Go in Settings>Apps>All apps and check if total available memory is near about to be full,if so What you have to do is to clear the cache of some particular(Big Size) apps by clicking "app-name" and "Clear cache"  untill the space in all app become sufficient for your new app.