It's called GPS drift and it is usually caused when your phone can't latch onto a strong GPS signal while indoors. The quick fix is to turn on Wi-Fi, or to get close to a window, which will This is usually caused if the location service of the phone is off, if the game has not been given permission to use the GPS, or if your phone is rooted. Here's what you need to do to fix this. .

pokemon go gps not found