title: Android - error opening trace file: No such file or directory(2)
body: <p>I am developing an android application and one part of it is to check whether the wifi of the phone is enabled or not.</p>
  
  <p>I am running the application directly on mobile phone.These are some errors</p>
  
  <pre><code>error opening trace file: No such file or directory (2)
  Refusing to reopen boot DEX 'system/framework/hwframework.jar'
  </code></pre>
  
  <p>This is my manifest file </p>
  
  <pre><code>&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.example.demo"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk
          android:minSdkVersion="8"
          android:targetSdkVersion="17" /&gt;
  
      &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /&gt;
  
      &lt;application
          android:allowBackup="true"
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme" &gt;
          &lt;activity
              android:name="com.example.demo.Test_allActivity"
              android:label="@string/app_name" &gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
  
                  &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
      &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p>I am very new to android , and can't figure out the solution. Thanks is advance</p>