"_OBJC_CLASS_$_WKWebView", referenced from:"...and "linker command failed with exit code 1 (use -v "

一,说明:

在做JS与OC交互时;Xcode报错:如下图:

二,解决方法:(添加Webkit.framework  status:optional)

Go to your Project, click on General, scroll down to Linked Frameworks and Libraries, and add WebKit.framework as Optional. See here: Xcode 6 + iOS 8 SDK but deploy on iOS 7 (UIWebKit & WKWebKit)

转到你的项目，点击通用，向下滚动到链接的框架和库，添加WebKit。框架是可选的。看这里:Xcode 6+ios8 SDK，但部署在iOS 7上(UIWebKit和WKWebKit)

stackoverflow上相同的问题描述:https://stackoverflow.com/questions/27615041/uiwebview-and-wkwebview