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Editorial Team
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Asked: 2026-06-05T13:41:28+00:00

I get this error when i click the login button of facebook in my

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I get this error when i click the login button of facebook in my android application

“Login Failed: invalid_key: Android Key mismatch. Your key “YLYMBqpjl/OenePeQNf4DORUfR8″ does not match the allowed keys specified in your application settings, check your app settings at http://www.facebook.com/developers”

I have gone through link: http://sean.lyn.ch/2011/07/android-the-facebook-sdk-sso-and-you/
and many more, and found out that when using android-facebook sdk on a device (it works fine on emulator) if there is a facebook application already installed on that device it gives this error. to solve this generate a hash key and add it to the facebook application settings, which i did properly, but still i get the same error.

where does this key – “YLYMBqpjl/OenePeQNf4DORUfR8” come from in my error message??

it was working fine on emulator, i could login and post on my wall and get userID, email etc…but on device i get this error

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1 Answer

  1. Editorial Team

    Your key is : “YLYMBqpjl/OenePeQNf4DORUfR8“

    paste this key in Native Android App Which Mark as a green Border.

    enter image description here

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