UITextView中粘贴长文本

如何在UITextView中粘贴长文本？现在我只要一将数据粘贴到textView.text中就会出错。

txtView.txt = @"About us

myventr.co is a web-based tool for event creation, event searching and online ticket      selling whilst also serving as a social media network. myventr.co is not just about creating events and buying tickets online but is also a place for you to socialise. You can create your own profile, connect with friends or create your own group for your organisation!

How is this different to other social media websites then? Myevent is about connecting people’s social lives and events all at the same place.  myventr.co will help find all the event details around your location and will also help avoid events clashing by simply searching the Event Calendar before creating an event.";

这是报错的代码。