Developed a Office 365 app in VS 2013. Through connected services I connected to my O365 account. But code getting failed in the following line :

     _discoveryContext = await DiscoveryContext.CreateAsync();

And the exception I got is as below:

Hi Nihar,

This is the forum to discuss questions and feedback for Microsoft Office client. There is not so much about Office 365 App development aspect here, I would suggest you to post in the forum of Office 365 community, where you can get more experienced responses:

http://community.office365.com/en-us/f/default.aspx

The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.

Regards,

Ethan Hua
TechNet Community Support