使用论坛里面的投屏类库出现异常：Action can not be null

初学者小萌妹

java.lang.IllegalArgumentException: Action can not be null
        at org.teleal.cling.model.action.ActionInvocation.<init>(Unknown Source:35)
        at org.teleal.cling.model.action.ActionInvocation.<init>(Unknown Source:1)
        at org.teleal.cling.support.connectionmanager.callback.GetProtocolInfo.<init>(Unknown Source:8)
        at org.teleal.cling.support.connectionmanager.callback.GetProtocolInfo.<init>(Unknown Source:1)
        at com.e4a.runtime.components.impl.android.DLNA投屏类库.DLNA投屏Impl$9.<init>(Unknown Source:2)
        at com.e4a.runtime.components.impl.android.DLNA投屏类库.DLNA投屏Impl.GetInfo(Unknown Source:19)
        at com.e4a.runtime.components.impl.android.DLNA投屏类库.DLNA投屏Impl$3.onItemClick(Unknown Source:30)
        at android.widget.AdapterView.performItemClick(AdapterView.java:330)
        at android.widget.AbsListView.performItemClick(AbsListView.java:1193)
        at android.widget.AbsListView$PerformClick.run(AbsListView.java:3188)
        at android.widget.AbsListView$3.run(AbsListView.java:4106)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:236)
        at android.app.ActivityThread.main(ActivityThread.java:8057)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:620)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1011)

zh2650307

板凳B，简单。。。。。。。。。。。