ErrnoException: open failed: ENOENT (No such file or directory)

[lingling-fan]

//package name: com.iamtrk.androidexplorer //version: 1.0 //target sdk version: android-18 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.iamtrk.androidexplorer/com.iamtrk.ItemListActivity}: java.lang.RuntimeException: java.io.FileNotFoundException: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: open failed: ENOENT (No such file or directory) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261) at android.app.ActivityThread.access$600(ActivityThread.java:141) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5103) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:525) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.RuntimeException: java.io.FileNotFoundException: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: open failed: ENOENT (No such file or directory) at com.iamtrk.androidExplorer.FrequencyManager.(FrequencyManager.java:26) at com.iamtrk.ItemListActivity.startApp(ItemListActivity.java:150) at com.iamtrk.ItemListActivity.onCreate(ItemListActivity.java:111) at android.app.Activity.performCreate(Activity.java:5133) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175) Caused by: java.io.FileNotFoundException: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: open failed: ENOENT (No such file or directory) at libcore.io.IoBridge.open(IoBridge.java:409) at java.io.RandomAccessFile.(RandomAccessFile.java:118) at java.io.RandomAccessFile.(RandomAccessFile.java:150) at com.iamtrk.androidExplorer.FrequencyManager.(FrequencyManager.java:24) 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)