提示inflating class Button 错误，这是什么原因啊

[AndMy]

这种方式导入的 compile 'com.github.jdsjlzx:PhotoPicker:1.0.4'
VIE-AL10_24java.lang.RuntimeException: Unable to start activity ComponentInfo{com.demo/me.iwf.photopicker.PhotoPickerActivity}: android.view.InflateException: Binary XML file line #20: Binary XML file line #20: Error inflating class Button
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2793)
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2864)
android.app.ActivityThread.-wrap12(ActivityThread.java)
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1567)
android.os.Handler.dispatchMessage(Handler.java:105)
android.os.Looper.loop(Looper.java:156)
android.app.ActivityThread.main(ActivityThread.java:6523)
java.lang.reflect.Method.invoke(Native Method)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:941)
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:831)