Connect to Facebook Problem Android

Hello all, I am having this problem with an app I am about to release. We are at the testing phase and Ive been using Prime31 plugins to connect and post to Facebook. Now my code works for all iOS and most of Android phones apart from:
Samsung Nexus 10, 4.4.2,
HTC One M8 – Android 4.4.2
Sony Xperia Z – Android 4.1.2
HTC One S - Android 4.1.1

The error is either:
- Invalid key hash. The key has ___ does not match any stored key hashes. Configure your app key hashes at facebook ( but this can't be as it's working fine on so many other devices )
- Error loading Page: Please use your browser's back button to try again, or close this window.

And also when control is returned to the app I don't get any event callbacks, neither success or failure. Any ideas whether these devices are circumstantial due to the app not being released or could there be something special about them?

 

Do androids require anything in particular for facebook?

 

Woohoo!!! I found it! There's a Facebook bug in their sdk for some devices that doesn't recognize if Facebook can do single sign on so if you disable their autoconfig it works!
Details for SSO here: https://developers.facebook.com/docs/reference/android/current/class/SessionLoginBehavior/

 

Glad I'm not the only one. Can you be more specific about how you were able to "disable their autoconfig"? Is this something you're doing in the project or on the facebook dev portal?

 

How do you fix this problem?

 

Same problem. Link broken.

 

i was dealing with this keyhash problem for over a day.......but what worked for me was that .........while on my Android Device with the signed application running ..........with the wrong keyhash put up in developers.facebook.com.......i tried to login and then i got an error message in the Facebook App saying that ...............The "<the real keyhash>" doesn't exit ...........so what i did was just adding the prompted keyhash in the Facebook App dealt with the problem.......now everything works like a charm

 

This is how i solved this problem

Download your APK to your PC in java jdk\bin folder

in my case C:\Program Files\Java\jdk1.7.0_121\bin

go to java jdk\bin folder and run cmd then
copy the following command in your cmd

keytool -list -printcert -jarfile yourapkname.apk

Copy the SHA1 value to your clip board
like this CD:A1:EA:A3:5C:5C:68:FB:FA:0A:6B:E5:5A:72:64D:26:8D:44:84
and open http://tomeko.net/online_tools/hex_to_base64.php to convert your SHA1 value to base64.
This is what Facebook requires
get the generated hash " ********************= " and copy the key hash to the facebook app.

 

Worked! ... Thanks a lot LucianBase.

 

Amazing, it did the trick! the hash KEY give in android was a bit different than the one in this website, actually i could not notice the difference between them lol, But the key from this website WORKED - 2017