App is misconfigured for Facebook login: Android Facebook integration issue

The question:

I have integrated my application with Facebook, and for this I am using Facebook’s Graph API. I am retrieving profile and friends information. It is working fine on my device which has Android 2.3 (Gingerbread), but recently my client has faced an issue while he is trying to connect to Facebook through my app. He has Android 4.0 (Ice Cream Sandwich) on his device. When he clicks a button on the app that takes him to the Facebook login screen, after login he gets a message:

My app is misconfigured for Facebook login. Press Okay to go back to the application without connecting to Facebook.

Facebook error message

I am not getting what is the problem whether it is related to Android version or what.

How can I fix this problem?

The Solutions:

Below are the methods you can try. The first solution is probably the best. Try others if the first one doesn’t work. Senior developers aren’t just copying/pasting – they read the methods carefully & apply them wisely to each case.

Method 1

I work at Facebook, and this is an important issue that needs to be addressed. The other answer for this question suggests that disabling SSO is very bad and will open up your app to malicious apps that can steal your user’s Facebook credentials.

The hack launches a WebView dialog to Facebook without SSO, and the user must type their login credentials into that dialog. Malicious apps can then steal this information easily. It is always advised to implement Facebook SSO correctly to ensure that your app is secure and protect your user’s sensitive data.

Prior to adding this error message, the dialog would automatically close without warning and fail silently. We added this error message to visually display that there is an issue with your app configuration in your Facebook app dashboard. For Android, if you check your LogCat, you’ll see that after pressing “Okay”, there should be an error message that will display a more technical description of what is causing the authentication to fail.

For example, if you use our Hackbook example and did not supply your own APP_ID in the source and did not add your hash key to the dashboard, you’ll see this error in LogCat after pressing “Okay” in the native SSO dialog (if Util.ENABLE_LOG is set to true):

D/Facebook-authorize(24739): Login failed: invalid_key:Android key mismatch. Your key “uk3udeH7vrOGNFH2FJjdJbdWJWI” does not match the allowed keys specified in your application settings. Check your application settings at

We added the visual error message to help you. This, in theory, does not break previous implementations if it was implemented correctly to begin with. If you see this error message, that means you did not configure your app settings correctly on your dashboard.
Double check your Android Class/Package name, Android hash keys, etc. You will not see this message if you did everything correctly.

In summary, you are getting that error message because there is an issue with your app configuration, for example, a mismatch between the Android hash keys in your dashboard. Before Facebook added this error message, the dialog would launch, then automatically close and fail. To fix this, check your LogCat for any error messages and make sure that you have everything implemented correctly. You can read up on our documentation to make sure you have everything correct. Do not use the accepted answer for this question.

You can also follow the external bug report that a Facebook developer has reported for more updates.

Method 2

Try to set it like this:

First download OpenSSL (if you have a 64-bit machine you must download openssl-0.9.8e X64, not the latest version, openssl-0.9.8k X64, because the output will not be valid). Extract your files, create the folder openssl, for example in C:/ and copy files there.

Find your path to keytoo. Mine is C:Program FilesJavajdk1.7.0_05bin.

Find your path to debug.keystore. YHou can see what is path if you open in Eclipse, menu Window -> Preferences -> Android -> Build, and you will see Default Debug keystore:-and the path.

Find your path to openssl. Mine is C:openssl8ebin/.

Open cmd and type:

“C:Program FilesJavajdk1.7.0_05binkeytool” -exportcert -alias androiddebugkey -keystore “C:UsersUser.androiddebug.keystore” | “C:openssl8ebinopenssl” sha1 -binary | “C:openssl8ebinopenssl” base64

Aand then press Enter.

Insert password: android

You will get your hash key for debug.keystore.

When you export a signed APK, and you create a keystore for the application, just replace in cmd debugkeystore alias with your alias for the app, the keystore path with the path to your newly created keystore for the app and insert the password for your app.keystore, and you will get a new hash key for your signed app.

Method 3

The answer from Jesse Chen is fine. Facebooks SDK works fine, don’t break it.

I again ran into this problem and found out that the Facebook SDK documentation is corrected and is very fine now. Now it is guiding how to debug and release hash keys can be set; just do as it says.

Below is my old story. There is missing that you can set two hash keys, one for debugging and one for signed, released application for the old Play Store.

I found out that problem was in my case in the Facebook SDK’s documentation. It guided us to use the debug key hash and put it in Facebook’s app configuration. Hash is guided to get this way:

keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | openssl sha1 -binary | openssl base64

This works fine, when you are dubugging or running application from Eclipse.

But, if you publish your application to Andoid Play, you must use your own publisher key to export the signed .apk file. With that .apk, the hash in the Facebook app console is not valid any more! You must get a hash for the developer key like this:

keytool -exportcert -alias <developer alias> -keystore ~/.android/<developer keystore> | openssl sha1 -binary | openssl base64

And put it in the Android Key Hash in the Facebook app console for your published application. After that, SSO works fine again for your signed .apk file.

Method 4

From what I could gather, it’s a Facebook problem and has been reported. But, the problem persists.

A way around this (tested on 2.3.3) is to hack on the Facebook SDK, seach for the 2 authorize methods and change the DEFAULT_AUTH_ACTIVITY_CODE to FORCE_DIALOG_AUTH. This will disable the Single Sign On feature.

If your prefer got to

public void authorize(Activity activity, String[] permissions,
            int activityCode, final DialogListener listener) 

and disable the startSingleSignOn part. It’s preferable not to, because eventually Facebook will solve the problem, and you only have to put the old constant back.


This solution raises security problems. Check Jesse Chen answer.

Method 5

I faced the same problem, after spending 24 hours and a lot of search we use this method to solve my problem.

  1. Check your Xcode project current bundle identifier
    for example : com.yourcompanyname.yourappname

  2. use the same com.yourcompanyname.yourappname bundle identifier for creating app in Facebook see attachment.

enter image description here

Method 6

I had this problem just a few minutes ago myself on 4.0.4 and it seems to have resolved itself.

Method 7

Although late, still useful:
*Here’s the corerct way to do(for debug key, change accordingly for release):*

keytool -exportcert -alias androiddebugkey -keystore "C:Users<User>.androiddebug.keystore" > <Drive letter>:debug.txt
openssl sha1 -binary "<Drive letter>:debug.txt" > "<Drive letter>:debug_sha.txt"
openssl base64 -in "<Drive letter>:debug_sha.txt" > "<Drive letter>:debug_base64.txt"

The hash is in the last generated file: debug_base64.txt….open it and copy the hash.

Remember to replace “” and with your username and drive letter of your choice

Method 8

When you create the key hash, you might end up with something which has the equality sign “=” at the end, like ga0RGNYHvNM5d0SLGQfpQWAPGJ8=. While Facebook gladly accepts the equality sign as part of the key hash, you have to remove it in order for it to work.

Additionally, check out the accepted answer to Android Facebook SDK 3.0 gives “remote_app_id does not match stored id” while logging in: when getting the key hash for the debug keystore, use the password “android”. Otherwise the key hash will be incorrect and you will get the error specified in the question (be nice and vote up the answer there if it helped you.)

Method 9

Regarding apps signed with OWN keystore:
After spending several hours solving this issue, I finally got it and want to provide an answer for those who are still suffering:

My steps:
I signed my app via eclipse with my own keystore file (NOT debug.keystore).
Via command line and known commands (keytool -exportcert -alias -keystore ~/.android/ | openssl sha1 -binary | openssl base64) I successfulluy received the key hash.
Pasted the key hash in the dev dashboard,waited a few mins -> Still the same ERROR (as specified in the question above).
i tried several differend keytools, on several jdks, etc… nothing changed.

I turned on debuggable in manifest, turned on debugging in facebook sdk. then i signed the apk with my own keystore and uploaded it on real device.
i connected device via usb and opened DDMS perspective to see logcat on device.
I started my app and let the error message occur.
It prints out a key totally different from the key generated by keytool. I took this key from logcat, pasted it to dev dashboard and voila -> EVERYTHING WORKS

I still don’t know why this happens or what is causing the wrong key, but this way it works for me.

Method 10

On Debian system like ubuntu use the keytool of java found under directory /usr/lib/jvm/jdk*.*.*/bin/keytool and generate like this

/usr/lib/jvm/jdk1.7.0/bin/keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | openssl sha1 -binary | openssl base64

This way you get the authentic hash key that can be put under your app hash of facebook.

Method 11

Usually this problem could be solved with two check:

  • flag in the facebook console to publish live the facebook configuration
  • api key mismatches

Method 12

I managed to solve the issue I was having with misconfigured for Facebook on Android by ensuring I had the correct hash key for a release version.

To get the release version hash key, find the key you used to sign the application and do the following, insert the name of your keystore alias (without brackets). If you don’t know your alias this can be found by exporting your app as a signed app and the alias is on the second page of the wizard. Also insert the path to your keystore (without brackets).

keytool -exportcert -alias [Alias of your keystore] -keystore [Path to keystore] | openssl sha1 -binary | openssl base64

Method 13

I did a Toast for exceptions and found it throws a key mismatch exception today added the key in the FB app page and it works fine

Method 14

Also encountered this issue.

Simply go to the Facebook developers getting started page here

and follow step 4 – the thing with the command line.

Worked for me.


Method 15

I just had the same problem and the solution turned out to be super simple. When I created the app in the dashboard, I only had added the key hash for the android debug keystore. This all works fine if you install the app as a developer via a USB cable in this case.

Once you have an app in the Play Store, you will use a production key to sign the app. This also means, that you have to get the key hash of the production key like for the debug key and add it as a second hash to the list of native app hashes.

just to remember you how the key hash works:
keytool -exportcert -alias -keystore ~/keys/android_keystore | openssl sha1 -binary | openssl base64

Hope that helps!

Method 16

I had a similar problem, but for iOS.

The solution is to do with configuring the Facebook app on the Facebook developer daskboard.

For iOS, 2 things must be done:

  1. Enabled Facebook Login

  2. Bundle ID must be the same as the app

Method 17

It’s a keystore issue..configure your eclipse to use the same keystore for which app was configured for.

Method 18

I got the same error a few days ago. In my case it was due to an Android key mismatch. Here is how I fixed it if it may help you too:

Open in the Facebook SDK, set private static boolean ENABLE_LOG = true;. Now run your app and enter your email id and password. Facebook sends back a signature if there’s a key mismatch. You’ll find this key (signature) in LogCat. Just copy this key and paste it in the app dashboard. That should fix the problem. Remember to set private static boolean ENABLE_LOG = true; back to false.

All methods was sourced from or, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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