how to add facebook to unity game project for android

i registered in facebook developer website.
then downloaded their fascebook sdk for android and imported that to my game project.
after that i copy pasted some information from unity editor to the facebook developer dashboard.
however , my unity editor does not show the field key hash.
i installed then openssl and copy pasted contents from openssl bin to java installation bin.
cmd , looking at all possibilities , restarting unity several time ,but unity does not show that key hash to me.
i hope someone has done this process and has some ideas to help.
good luck!

 

Did you setup the path for your ssl and java in Windows?

https://answers.unity.com/questions/616484/open-ssl-not-found.html

 

the best answer. thanks !

 

however now there is an error like: Keytool not found
your android debug keystone file is missing. you can create new one by....
what should i do now?

 

Actually i am not sure if that is correct.
What i did is adding two path there in variable environment: jdk and openssl in two lines .
So what is next ?!

 

https://forum.unity.com/threads/debug-keystore-missing-in-facebook-unity-sdk.441777/

Take a look at the last post here about creating a project in Android studios which also creates the debug.keystore.

Note, this is just the debug key and not the official one that goes out with your own keystore file.

 

i have already read it , but my windows 10 does not have some key in %userprofile%\.android\
it has just few files like adbkey
and adbkey.pub and... but it does not have key store.
by the way i use unity and android sdk not android studio

 

Yes, but you use android studios to create the debug keystore, then you go back to Unity. We had to do the same thing on a work computer. But, if this doesn't fix it for you, then I can't help you.

 

Are you sure about it ? every developer that needs to add facebook login to their game , should do that?
or?
P.S : i would like also to ask from unity officials to help us about adding facebook login to unity android projects , when there are stopping like this key store .because googling about this idea bring to us so much informations , but each one is rather in different way .
so thanks.