我的模拟器出现问题。当我启动它时，模拟器会在黑色页面上显示“android”一词。不会改变。 Logcat读取：
08-16 20:01:11.580 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.580 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.590 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.590 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.590 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.590 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.590 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.590 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.590 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.590 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.590 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.590 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.600 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.600 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.600 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.600 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.600 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.600 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.600 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.600 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.600 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.600 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.600 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.600 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.600 415-415/? E/﹕ Failed to connect to host (QemuPipeStream)!!!
08-16 20:01:11.600 415-415/? E/EGL_emulation﹕ Failed to establish connection with the host
08-16 20:01:11.600 415-415/? D/dalvikvm﹕ WAIT_FOR_CONCURRENT_GC blocked 1ms
08-16 20:01:11.700 415-415/? D/dalvikvm﹕ GC_EXPLICIT freed 10K, 30% free 2864K/4088K, paused 3ms+8ms, total 103ms
08-16 20:01:11.780 415-415/? D/dalvikvm﹕ GC_EXPLICIT freed 4K, 31% free 2860K/4088K, paused 9ms+4ms, total 78ms
08-16 20:01:11.830 711-711/? I/installd﹕ installd firing up
08-16 20:01:11.830 711-711/? E/cutils﹕ Failed to read /data/.layout_version: No such file or directory
08-16 20:01:11.840 711-711/? E/installd﹕ Could not create directories; exiting.
08-16 20:01:11.920 415-415/? D/dalvikvm﹕ GC_EXPLICIT freed <1K, 31% free 2860K/4088K, paused 24ms+22ms, total 133ms
08-16 20:01:12.000 415-415/? I/dalvikvm﹕ System server process 713 has been created
08-16 20:01:12.010 712-712/? E/keystore﹕ chdir: /data/misc/keystore: No such file or directory
08-16 20:01:12.030 415-415/? I/Zygote﹕ Accepting command socket connections
08-16 20:01:12.210 713-713/? I/SystemServer﹕ Entered the Android system server!
08-16 20:01:12.220 713-713/? D/SensorService﹕ nuSensorService starting...
08-16 20:01:12.230 713-713/? I/SensorService﹕ Goldfish 3-axis Accelerometer
08-16 20:01:12.230 713-713/? I/SensorService﹕ Goldfish 3-axis Magnetic field sensor
08-16 20:01:12.240 713-713/? I/SensorService﹕ Goldfish Orientation sensor
08-16 20:01:12.240 713-713/? I/SensorService﹕ Goldfish Temperature sensor
08-16 20:01:12.240 713-713/? I/SensorService﹕ Goldfish Proximity sensor
08-16 20:01:12.250 713-713/? D/SensorService﹕ Max socket buffer size 131071
08-16 20:01:12.260 713-726/? D/SensorService﹕ nuSensorService thread starting...
08-16 20:01:12.270 713-713/? I/SystemServer﹕ Waiting for installd to be ready.
08-16 20:01:12.270 713-713/? I/Installer﹕ connecting...
08-16 20:01:12.280 713-727/? I/SystemServer﹕ Enabled StrictMode logging for WM Looper
08-16 20:01:12.280 713-713/? I/Installer﹕ disconnecting...
08-16 20:01:12.290 713-713/? E/Installer﹕ connection failed
08-16 20:01:12.290 713-713/? I/SystemServer﹕ Power Manager
08-16 20:01:12.300 713-713/? E/PowerManagerService-JNI﹕ Couldn't load power module (No such file or directory)
08-16 20:01:12.310 713-713/? I/SystemServer﹕ Activity Manager
08-16 20:01:12.350 713-728/? I/ActivityManager﹕ Memory class: 64
08-16 20:01:12.400 713-730/? W/BatteryStats﹕ Error writing battery statistics
java.io.FileNotFoundException: /data/system/batterystats.bin.tmp: open failed: ENOENT (No such file or directory)
at libcore.io.IoBridge.open(IoBridge.java:409)
at java.io.FileOutputStream.<init>(FileOutputStream.java:88)
at java.io.FileOutputStream.<init>(FileOutputStream.java:73)
at com.android.internal.os.BatteryStatsImpl.commitPendingDataToDisk(BatteryStatsImpl.java:5326)
at com.android.internal.os.BatteryStatsImpl$1.run(BatteryStatsImpl.java:5306)
Caused by: libcore.io.ErrnoException: open failed: ENOENT (No such file or directory)
at libcore.io.Posix.open(Native Method)
at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
at libcore.io.IoBridge.open(IoBridge.java:393)
at java.io.FileOutputStream。（FileOutputStream.java:88） 在java.io.FileOutputStream。（FileOutputStream.java:73） 在com.android.internal.os.BatteryStatsImpl.commitPendingDataToDisk（BatteryStatsImpl.java:5326） 在com.android.internal.os.BatteryStatsImpl $ 1.run（BatteryStatsImpl.java:5306） 08-16 20：01：12.430 713-728 /？ W / UsageStats：错误：java.io.IOException：open failed：ENOENT（没有这样的文件或目录）从文件读取数据：/ data / system / usagestats / usage-20140816 08-16 20：01：12.430 713-728 /？ I / AppOps：没有现有的app ops /data/system/appops.xml;从空开始 08-16 20：01：12.530 713-732 /？ I / UiThread：为UI线程启用StrictMode日志记录 08-16 20：01：12.560 713-713 /？ E /系统： ************************************** 08-16 20：01：12.570 713-713 /？ E /系统： ******** 启动引导服务失败 显示java.lang.NullPointerException 在com.android.server.firewall.IntentFirewall.readRulesDir（IntentFirewall.java:271） 在com.android.server.firewall.IntentFirewall。（IntentFirewall.java:114） 在com.android.server.am.ActivityManagerService.main（ActivityManagerService.java:1804） 在com.android.server.ServerThread.initAndLoop（SystemServer.java:196） 在com.android.server.SystemServer.main（SystemServer.java:1179） at java.lang.reflect.Method.invokeNative（Native Method） 在java.lang.reflect.Method.invoke（Method.java:515） 在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:779） 在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:595） at dalvik.system.NativeStart.main（Native Method） 08-16 20：01：12.580 713-713 /？ I / SystemServer：显示管理器 08-16 20：01：12.600 45-76 /？ E / SurfaceFlinger：ro.sf.lcd_density必须定义为构建属性 08-16 20：01：12.610 713-727 /？ W / dalvikvm：threadid = 12：线程退出未捕获的异常（group = 0xb1ab2ba8） 08-16 20：01：12.610 713-727 /？ E / AndroidRuntime： * 系统进程中的致命异常：WindowManager 显示java.lang.NullPointerException 在com.android.server.display.LocalDisplayAdapter $ LocalDisplayDevice.getDisplayDeviceInfoLocked（LocalDisplayAdapter.java:147） 在com.android.server.display.DisplayManagerService.handleDisplayDeviceAddedLocked（DisplayManagerService.java:852） 在com.android.server.display.DisplayManagerService.handleDisplayDeviceAdded（DisplayManagerService.java:841） 在com.android.server.display.DisplayManagerService.access $ 1100（DisplayManagerService.java:96） 在
com.android.server.display.DisplayManagerService$DisplayAdapterListener.onDisplayDeviceEvent(DisplayManagerService.java:1281)
at com.android.server.display.DisplayAdapter$1.run(DisplayAdapter.java:108)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.os.HandlerThread.run(HandlerThread.java:61)
Whats the issue please?