I've an exception when run android application (java.io.FileNotFoundException)?

whats this file ?!!! i don't delete it !! java.io.FileNotFoundException: res/drawable-mdpi/scrollbar_handle_vertical.9.png

12-06 14:26:33.606: ERROR/AndroidRuntime(276): FATAL EXCEPTION: main
    12-06 14:26:33.606: ERROR/AndroidRuntime(276): android.view.InflateException: Binary XML file line #101: Error inflating class <unknown>
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.view.LayoutInflater.createView(LayoutInflater.java:513)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:621)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:621)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at ayanoo.forms.UserView.<init>(UserView.java:50)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at ayanoo.forms.SearchResultForm.addUser(SearchResultForm.java:124)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at ayanoo.forms.SearchResultForm.doSearch(SearchResultForm.java:105)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at ayanoo.forms.SearchResultForm$1.onClick(SearchResultForm.java:55)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.view.View.performClick(View.java:2408)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.view.View$PerformClick.run(View.java:8816)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.os.Handler.handleCallback(Handler.java:587)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.os.Handler.dispatchMessage(Handler.java:92)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.os.Looper.loop(Looper.java:123)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.app.ActivityThread.main(ActivityThread.java:4627)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at java.lang.reflect.Method.invokeNative(Native Method)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at java.lang.reflect.Method.invoke(Method.java:521)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at dalvik.system.NativeStart.main(Native Method)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276): Caused by: java.lang.reflect.InvocationTargetException
    12-06 14:26:33.606: E开发者_JAVA技巧RROR/AndroidRuntime(276):     at android.widget.Button.<init>(Button.java:65)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at java.lang.reflect.Constructor.constructNative(Native Method)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.view.LayoutInflater.createView(LayoutInflater.java:500)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     ... 22 more
    12-06 14:26:33.606: ERROR/AndroidRuntime(276): Caused by: android.content.res.Resources$NotFoundException: File res/drawable-mdpi/scrollbar_handle_vertical.9.png from drawable resource ID #0x7f060057
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.content.res.Resources.loadDrawable(Resources.java:1714)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.view.View.<init>(View.java:1885)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.widget.TextView.<init>(TextView.java:327)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.widget.Button.<init>(Button.java:69)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     ... 26 more
    12-06 14:26:33.606: ERROR/AndroidRuntime(276): Caused by: java.io.FileNotFoundException: res/drawable-mdpi/scrollbar_handle_vertical.9.png
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.content.res.AssetManager.openNonAssetNative(Native Method)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.content.res.AssetManager.openNonAsset(AssetManager.java:405)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     at android.content.res.Resources.loadDrawable(Resources.java:1706)
    12-06 14:26:33.606: ERROR/AndroidRuntime(276):     ... 30 more
    12-06 14:26:56.035: ERROR/MetadataRetrieverClient(33): failed to extract an album art

sometimes Eclipse stucks with this .. just close IDE and start it again. and try to rebuild project.

Clean and build the project, then double-check the path to the resource.