＆＃34;没有使用Objective-C选择器声明的方法＆＃39; playPause：＆＃39;＆＃34; ＆安培; ＆＃34;使用未解析的标识符UIBarButtonItem＆＃34;

Question

I'm Making a music player and I'm not sure why I'm getting this error in my code. I'm new to coding and would highly appreciate some help (This is the image of the code)

Answer 1

您犯了一个错误，用UIBarButtonItem.play

替换UIBarButtonSystemItem.play