Error : Invalid key hash.The key hash does not match any stored key hashes


Posted on : Wed, 6th May 15 11:24 am UTC
100+ votes

Invalid key hash. The key hash 8392849ZvfdjHakw2849H245738wue0 does not match any stored key hashes. Configure your app key hashes at http://developers.facebook.com/apps/ APP-ID

If you are getting the above error message while trying to Login to an App using Facebook App then the reason is that your key hash is not correct, just regenerate it and update it on the App's Developers console.

To get the Key Hash all you need to do is just need to copy the below code in onCreate() method of your launch Activity Class and watch the output in Android Studio LogCat,

FbKeyHashSnippet.java Language : Java
try {
        PackageInfo info = getPackageManager().getPackageInfo(
                "com.your-package-name", 
                PackageManager.GET_SIGNATURES);
        for (Signature signature : info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            Log.d("YourKeyHash :", Base64.encodeToString(md.digest(), Base64.DEFAULT));
            System.out.Println("YourKeyHash: ", Base64.encodeToString(md.digest(), Base64.DEFAULT));
            }
    } catch (NameNotFoundException e) {

    } catch (NoSuchAlgorithmException e) {

    }
Note : Just replace com.your-package-name with your app package name in the above code.


Advertisements






Snapshot : Facebook Invalid key hash error

Code2care's mission is to share varied knowledge in technical and non-technical areas gathered during day-to-day learnings and development activities so that our visitors can leverage this portal to find solutions to their queries without re-inventing the wheel. Technical posts include Learnings, Tutorials, Video Tutorials, Code Snippets, Tips-n-tricks.

Follow us : Facebook - Twitter - Google +