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Editorial Team
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Asked: 2026-05-23T05:11:55+00:00

Ok, so I am trying to work with the facebook API, but having no

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Ok, so I am trying to work with the facebook API, but having no luck with this keystore. I can get it to generate and give my a signature, but the app keeps telling me invalid_key. I was reading around and some people were saying that you have to use linux to get a good signature, which I find hard to believe. Can anyone help me out here?

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  1. Editorial Team

    You have to get the key from your keystore and put it on the facebook website.

    Follow the guide here…

    http://developers.facebook.com/docs/guides/mobile/#android

    Basically you need to extract the key from your keystore. The following command extracts the key androiddebugkey from a keystore called debug.keystore (both of these are auto created by Eclipse). The password for androiddebugkeystore is android.

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

    Once you have the number from that, you put it in the Key hash field on your Facebook app’s page.. Facebook App page

    The key follows the same format seen in the image.

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