Question

谁知到这段JAVA语句哪里出错了 java.lang.RuntimeException: Unab

谁知到这段JAVA语句哪里出错了
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.garena.game.lfstw/com.aiming.lfs.LFSActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2421)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2481)
at android.app.ActivityThread.access$900(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1349)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5432)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:735)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference
at com.aiming.lfs.billing.util.IabHelper.startSetup(IabHelper.java:269)
at com.aiming.lfs.billing.BillingProcessor.setupBilling(BillingProcessor.java:64)
at com.aiming.lfs.billing.BillingProcessor.initialize(BillingProcessor.java:38)
at com.aiming.lfs.LFSActivity.onCreate(LFSActivity.java:89)
at android.app.Activity.performCreate(Activity.java:6289)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108

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Answer 1

你在一个值为null的列表上调用了isEmpty方法，引发了空指针异常

Answer 2

运行时异常 空指针

追问

那怎么办啊

追答

自己调试。或者加我的qw。3260378560

追问

但是已经被生成了一个app啊

追答

app能运行么

追问

不能

点进去就闪退

追答

人家机子能运行么

追问

都不能

追答

那就重新编译
没办法

追问

。。。。