Solution 1:

Add Internet permission to your manifest:

<uses-permission android:name="android.permission.INTERNET"/>

Solution 2:

You need to go to your Manifest file in your android application project then above application section next to other permissions add: android.permission.INTERNET

Your manifest should look something like this:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="18" />
....
<uses-permission android:name="android.permission.INTERNET" />
...
<application
android:allowBackup="true"
....

keep in mind value (android.permission.INTERNET) is case sensitive.

Hope this saves you some time.