Deepak, have you selected needed users before clicking invitation button?
I can not reproduce this issue on my installation. Can you send screen shot of every step you are doing?

My problem is similar. I selected user and not sent email and facebook notification or message.
The google apps is ok.
I attached my facebook apps setting. This is ok?

atomjani, if the issue still relevant, you will need to set secure canvas URL as well.

This is my first post so I hope I am doing this right. I apologize in advance if I am doing anything incorrectly. I installed the contact importer, activated it, put the keys into the boxes and saved them, and I get this error when i click on the users "dashboard" tab

Fatal error: Class 'TagsInputField' not found in /home/content/01/8685301/html/buckget.com/ow_plugins/contact_importer/components/email_invite.php on line 46

The error seems to move when I move the contact importer item in the admin user dashboard, but everything else seems to be working fine. I am using version 1.5.1 because the updates haven't worked for 1.5.2 or 1.5.3, but 1.5.1 seems to work fine for now and the contact importer worked at one point. The error goes away when I delete the contact importer. I have uninstalled and reinstalled and started over many times. It worked at one point and I can't tell when it stopped working because I have installed lots of plugins since then. Please help. I feel like the contact importer is a very important component for growth of the community.

Thank you,
Eric

I got another similar issue for the blog reported by a member of BuckGet.com...I will post it there as well, but it is:

 Fatal error: Class 'TagsInputField' not found in /home/content/01/8685301/html/buckget.com/ow_plugins/blogs/controllers/save.php on line 260 - See more at: http://buckget.com/blogs/post/4427#sthash.sBsxlG5j.dpuf

Please help,

Thank you,

Eric

Further discussion with Eric here: http://www.oxwall.org/forum/topic/12296

Issue was caused by mismatching versions of core and plugins.

Hello, Was the problem solved? I also have the same problem. I have set my contact importer correctly but the invitations still cannot be sent. 

Please Help. Thanks.

Please provide a screenshot of the error and screenshot of your FB settings page.

There is absolutely no response / reaction after clicking the facebook button.

Please provide a screenshot of your FB settings page.

To me it still gives me contact importer needs to be configured but I put the keys etc.. Facebook connect works well I registered with my facebook profile. my site is ssl certificate

What is the error you get when you try Google importer?

On the facebook link provides absolutely no response, Google link works normally as well the e-mail link. Only Facebook reacts totally, no error message NOTHING.!

share your URL daydreams

http://www.oxwall.org/forum/topic/27611?page=1#post-119589 read here, please

The solution implemented, but the website was then no longer accessible. Had to restore a backup again to get the website working. Updating the platform and plugins, often cause problems.

Daydreams, is your problem related to the FB contact importer solved or not?

If you have problems with updating, please post a request in the forum.