我的程序运行但是我在logcat中得到了上面提到的eroor是什么原因我不能没有得到这样的帮助我。我正在提供我的堆栈跟踪。如果有任何机构知道为什么会出现此错误，请告诉我
10-26 06:55:55.248: W/System.err(981): at android.app.ActivityThread.main(ActivityThread.java:3814)
10-26 06:55:55.248: W/System.err(981): at java.lang.reflect.Method.invokeNative(Native Method)
10-26 06:55:55.248: W/System.err(981): at java.lang.reflect.Method.invoke(Method.java:538)
10-26 06:55:55.248: W/System.err(981): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901)
10-26 06:55:55.248: W/System.err(981): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:659)
10-26 06:55:55.248: W/System.err(981): at dalvik.system.NativeStart.main(Native Method)
10-26 06:55:55.248: W/System.err(981): Caused by: java.lang.NullPointerException
10-26 06:55:55.248: W/System.err(981): at com.simsys.securex.PolicyReceiver.onReceive(PolicyReceiver.java:821)
10-26 06:55:55.248: W/System.err(981): at android.app.ActivityThread.handleReceiver(ActivityThread.java:1888)
10-26 06:55:55.248: W/System.err(981): ... 10 more
10-26 06:56:05.529: I/dalvikvm(981): threadid=4: reacting to signal 3
10-26 06:56:05.529: D/dalvikvm(981): SigQuit + : 0
10-26 06:56:05.533: I/dalvikvm(981): Wrote stack traces to '/data/anr/traces.txt'
10-26 06:56:05.543: E/dalvikvm(981): Unable to open stack trace file '/data/anr/jbt/jbt.981.tmp': No such file or directory
10-26 06:56:05.543: D/dalvikvm(981): SigQuit - : 0
10-26 06:59:19.745: I/dalvikvm(1043): threadid=4: reacting to signal 3
10-26 06:59:19.745: D/dalvikvm(1043): SigQuit + : 0
10-26 06:59:19.757: I/dalvikvm(1043): Wrote stack traces to '/data/anr/traces.txt'
10-26 06:59:19.765: E/dalvikvm(1043): Unable to open stack trace file '/data/anr/jbt/jbt.1043.tmp': No such file or directory
10-26 06:59:19.765: D/dalvikvm(1043): SigQuit - : 0
10-26 06:59:32.834: D/AndroidRuntime(1135): Shutting down VM
10-26 06:59:32.834: W/dalvikvm(1135): threadid=1: thread exiting with uncaught exception (group=0x4001c648)
10-26 06:59:32.838: W/System.err(1135): java.lang.RuntimeException: Unable to start receiver com.simsys.securex.PolicyReceiver: java.lang.NullPointerException
10-26 06:59:32.839: W/System.err(1135): at android.app.ActivityThread.handleReceiver(ActivityThread.java:1899)
10-26 06:59:32.839: W/System.err(1135): at android.app.ActivityThread.access$2400(ActivityThread.java:155)
10-26 06:59:32.839: W/System.err(1135): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1043)
10-26 06:59:32.839: W/System.err(1135): at android.os.Handler.dispatchMessage(Handler.java:130)
10-26 06:59:32.840: W/System.err(1135): at android.os.Looper.loop(SourceFile:351)
10-26 06:59:32.840: W/System.err(1135): at android.app.ActivityThread.main(ActivityThread.java:3814)
10-26 06:59:32.840: W/System.err(1135): at java.lang.reflect.Method.invokeNative(Native Method)
10-26 06:59:32.840: W/System.err(1135): at java.lang.reflect.Method.invoke(Method.java:538)
10-26 06:59:32.840: W/System.err(1135): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901)
10-26 06:59:32.841: W/System.err(1135): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:659)
10-26 06:59:32.841: W/System.err(1135): at dalvik.system.NativeStart.main(Native Method)
10-26 06:59:32.841: W/System.err(1135): Caused by: java.lang.NullPointerException
10-26 06:59:32.841: W/System.err(1135): at com.simsys.securex.PolicyReceiver.onReceive(PolicyReceiver.java:821)
10-26 06:59:32.841: W/System.err(1135): at android.app.ActivityThread.handleReceiver(ActivityThread.java:1888)
10-26 06:59:32.842: W/System.err(1135): ... 10 more
10-26 06:59:43.649: I/dalvikvm(1135): threadid=4: reacting to signal 3
10-26 06:59:43.649: D/dalvikvm(1135): SigQuit + : 0
10-26 06:59:43.653: I/dalvikvm(1135): Wrote stack traces to '/data/anr/traces.txt'
10-26 06:59:43.664: E/dalvikvm(1135): Unable to open stack trace file '/data/anr/jbt/jbt.1135.tmp': No such file or directory
10-26 06:59:43.664: D/dalvikvm(1135): SigQuit - : 0
10-26 07:01:01.606: I/dalvikvm(1184): threadid=4: reacting to signal 3
10-26 07:01:01.606: D/dalvikvm(1184): SigQuit + : 0
10-26 07:01:01.611: I/dalvikvm(1184): Wrote stack traces to '/data/anr/traces.txt'
10-26 07:01:01.613: E/dalvikvm(1184): Unable to open stack trace file '/data/anr/jbt/jbt.1184.tmp': No such file or directory
10-26 07:01:01.613: D/dalvikvm(1184): SigQuit - : 0
答案 0 :(得分：0)
尝试在PolicyReceiver.java文件的第821行访问某些 null 对象。
关于Unable to open stack trace file错误消息，它们似乎是某些Android系统构建的常见问题。系统尝试但无法编写一些可帮助您调试实际错误的信息。这与您无关，因为您已经在使用logcat看到的日志中包含此信息。