facebook login have error of 'Email is required. '

I just created an app in Facebook.
and config the App ID/API Key: Secrect.
but once i test to login from facebook, it will redirect to facebook and call back successfully,
but with the error   'Email is required. '

I have do nothing, the Nop is v3.6.
I have no idea for what should i can do? because i didn't do anything just follow the official instruction.

Please have a look at https://www.nopcommerce.com/boards/t/37012/facebook-external-issue-on-nop-360.aspx#150995

I have already tried this way, but still show the message.
Are there any special settings I need for facebook? or just simply create an web app in FB.

a.m. wrote:

except to fill the AppId and Secrect
what should i do then?
for Nop I didn't do anything, just downed the version 3.6 source code and publish it to IIS.
and from facebook side, and i also just created an APP with the website type.
I am not sure from our official side, what should i do for finding the reason?

BTW the facebook API version is v2.5.

rickxie wrote:
In your facebook app you have to set email in contact email and make it live to all.http://stackoverflow.com/questions/20696738/i-am-new-how-do-i-make-my-app-live-on-fb
Did you do that?

Finally I found bellows:
1. email is required? Facebook email should be verified before to use it to login, otherwise email can't be got.
2. http://localhost also can debug, so that we can find the details. before i don't know this point.
3. we can test from official api to see the return value.
https://developers.facebook.com/tools/explorer/


In summary, I think Nop should handle the situation 1 above, or just to alert a [email is required] to block user to login.

rickxie wrote:


rickxie ,do you have solved the problem? how solve the problem?

Please see this post of mine. It's fixed in the upcoming version 3.70

Change FacebookProviderAuthorizer.cs class  ,add method RequestEmailFromFacebook,
and call this in the ParseClaims() method where claims.Contact.Email is set.
I have done this,but it still show the error of 'Email is required. '