reason: 'couldn't find a common superview for <UIView: 0x7ffc2e303270; frame = (0 0; 0 0); layer = <CALayer: 0x7ffc2e3033e0>> and <JTCalendarContentView: 0x7ffc2d81f200; baseClass = UIScrollView; frame = (0 64; 375 72); clipsToBounds = YES; autoresize = RM+BM; gestureRecognizers = <NSArray: 0x7ffc2be760c0>; layer = <CALayer: 0x7ffc2bec31f0>; contentOffset: {750, 0}; contentSize: {1875, 72}>'
拉約束的時(shí)候，各個(gè)控件（有關(guān)系的）用的不是一個(gè)參照物。我出現(xiàn)這種情況的原因是因?yàn)橐徊糠挚丶玫腦IB拉的約束，一部分用的masonry，一個(gè)視圖用代碼寫的附在XIB的控件上出現(xiàn)了問題，解決辦法，都用XIB，或者代碼，或者你找到一個(gè)參照物
