Facebook implementation in android

i am trying to implement facebook in android. I am following this tutorials.

tutorial

i got stuck at one point,

i hv to execute this

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

but running it on cmd prompt is not working for me.

This tool gener开发者_如何学Goates a string that must be registered in the Mobile & Devices section of the Developer App for app. BUt i am not able to generate it.

plz,guide me to generate this.

Appreciate it

Are both "keytool" and "openssl" installed on your system? "keytool" is part of the Java runtime environment (so it should be there as you're developing an Android app) and "openssl" is a standard package that should be easy to retrieve for your Mac (if it's not already installed). Both have to be executed on the command line. If both are indeed installed, what's the exact output from the above command?