If you're having difficulty setting up the most up to date variation of the Facebook for Android application, you are in the ideal area.
New Facebook App Update Not Working
While attempting to install Facebook through Google Play Store, you can check out often this error message:
Can't install application. "Facebook" can't be installed. Attempt once more, and if the issue proceeds, obtain help troubleshooting. (error code:- 504).
The error code 504, is not a problem with the Facebook app, and not a generalised Play Store concern. To fix the trouble, try these troubleshooting ideas:
* Setups > Applications > All > Google Play Store, Clear information as well as Clear cache
* Setups > Apps > All > Google Play Services > Manage space, Clear all data as well as Clear cache
* Reboot your phone
* Try to update or install Facebook once again.