title: Error in running sample android application on an emulator
body: <p>I am new in android development.</p>
  
  <p>I created the sample hello world and try to run it on a emulated nexus 7 system.</p>
  
  <p>I am using android studio 1.8.14.</p>
  
  <p>When I run the application, I am getting this message in andoid studio:</p>
  
  <pre><code>Waiting for device.
  Target device: test_nexus_7 [emulator-5554]
  Uploading file
      local path: C:\Users\m\AndroidStudioProjects\MyApplication\app\build\outputs\apk\app-debug.apk
      remote path: /data/local/tmp/com.example.m.myapplication
  Installing com.example.m.myapplication
  DEVICE SHELL COMMAND: pm install -r "/data/local/tmp/com.example.m.myapplication"
  Error: Could not access the Package Manager.  Is the system running?
  </code></pre>
  
  <p>what is the problem and how can I fix it?</p>