I download an invalid package file.

Q: I have downloaded the package file, but when I tried to install, it says invalid package, what happened? 

A: The reason may be that you have saved the package on the wrong internal disc, you can change the save root for a try. It may also that the game can't compatible well with some devices, so we suggest you delete the file and download the package again, for the second time, you may install it successfully. If you still have trouble in installing, please contact our support team.