android - Getting android_key_not_configured facebook error -

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i trying enable facebook login in android app. have linked the facebook app in application. once press login, facebook error android_key_not_configured

has body seen before?

i saw message too. hadn't added key in "key hashes" field on facebook native android app menu. went ahead , added dummy key "foo". after adding dummy key, next time ran app, after waiting 5 minutes, got

"login failed" invalid_key:android key mismatch. key "my_key" match allowed keys specified in application settings.


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