When i have run application in mobile face book sdk work fine but when i create sign apk what wrong with this it show hash key not match onError method of facebook what to do now please help me out. i worked on it since last night.
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        Slava Vedenin
        
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        kirti
        
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                    you have to generate signed hash key and put it facebook developer account.. – Rajan1404930 Mar 19 '16 at 16:55
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                    how i will get that one please suggest me – kirti Mar 19 '16 at 17:00
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                    look this link : http://stackoverflow.com/questions/7506392/how-to-create-android-facebook-key-hash – Rajan1404930 Mar 19 '16 at 17:05
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                    i was create this and put in facebook developer console so it work normaly for unsign apk but when i generate sign apk , and install in mobile at that time fb account not work and show hask key not match – kirti Mar 19 '16 at 17:08
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                    After signing apk ,print hash key and put it . – Rajan1404930 Mar 19 '16 at 17:16
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                    how to print hash key because i generate sign apk in log cat no hash key present even thought i write logic in oncreate activity – kirti Mar 19 '16 at 17:22
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                    Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/106806/discussion-between-kirti-and-rajan1404930). – kirti Mar 19 '16 at 17:24