Adding a new calendar programmatically to calendar app if user is using non iOS account

Question

Can we add a new calendar to default calendar app programmatically if user is using any other account for calendars like yahoo or hotmail, I am getting following error:

Answer 1

Finally after a lot of research for few days , i found that Some EKExchange calendars like google , yahoo does not allow us to add events in their calendars . And if that is the case than you will get error with error code 17 as follows

"Domain=EKErrorDomain Code=17 "That account does not allow calendars to be added or removed." "

There is nothing we can do about this error, So i ended up giving alert to user that "We do not have rights to access your calendar account". Hope this helps someone if they face similar issue.