iOS 错误提示

2016-01-28 15:39:33.817 MosProject[5965:1900978] UIAccessibility Error adding -[DOMNode _moveRight:withHistory:]
2016-01-28 15:39:33.817 MosProject[5965:1900978] UIAccessibility Error adding -[DOMNode _moveLeft:withHistory:]
2016-01-28 15:39:33.818 MosProject[5965:1900978] UIAccessibility Error adding -[DOMNode _updateSelectionWithTextRange:withAffinityDownstream:]
2016-01-28 15:39:33.818 MosProject[5965:1900978] UIAccessibility Error adding +[DOMNode safeCategoryBaseClass]
2016-01-28 15:39:33.818 MosProject[5965:1900978] UIAccessibility Error adding -[UIWebFormAccessory initWithFrame:]
2016-01-28 15:39:33.818 MosProject[5965:1900978] UIAccessibility Error adding -[UIWebFormAccessory _accessibilityLoadAccessibilityInformation]
2016-01-28 15:39:33.818 MosProject[5965:1900978] UIAccessibility Error adding +[UIWebFormAccessory safeCategoryBaseClass]
2016-01-28 15:39:33.818 MosProject[5965:1900978] UIAccessibility Error adding +[UIWebFormSelectPeripheral createPeripheralWithDOMHTMLSelectElement:]
2016-01-28 15:39:33.819 MosProject[5965:1900978] UIAccessibility Error adding +[UIWebFormSelectPeripheral safeCategoryBaseClass]
2016-01-28 15:39:33.819 MosProject[5965:1900978] UIAccessibility Error adding -[UIWebSelectSinglePicker _accessibilityServesAsFirstElement]
2016-01-28 15:39:33.819 MosProject[5965:1900978] UIAccessibility Error adding +[UIWebSelectSinglePicker safeCategoryBaseClass]
2016-01-28 15:39:33.819 MosProject[5965:1900978] UIAccessibility Error adding -[UIWebSelectMultiplePicker _accessibilityServesAsFirstElement]
2016-01-28 15:39:33.819 MosProject[5965:1900978] UIAccessibility Error adding +[UIWebSelectMultiplePicker safeCategoryBaseClass]
2016-01-28 15:39:33.819 MosProject[5965:1900978] UIAccessibility Error adding -[UIWebPlugInView webPlugInStart]
2016-01-28 15:39:33.819 MosProject[5965:1900978] UIAccessibility Error adding +[UIWebPlugInView safeCategoryBaseClass]