Android Facebook login does not work on LG G3 -

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i'm developing new app on android studio , created app facebook login: facebook sdk v4. there problem connection facebook on device lg g3. on devices works - " emulators, device samsung note3" when connect device lg g3 receive error"key hash invalid" can do? version i'm trying test on is: lg g3 android version 5.0.

thanks help.


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