Android: Unfortunately the app has stopped

Android: Unfortunately the app has stopped

Here is the code. I have made another activity StartActivity.java When i
click on the button but it gives the erro that : "Unfortunately, test has
stopped". Please help me! thank everyone! MainACtivity.java
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Button button = (Button)findViewById(R.id.changeButton);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intents = new Intent (v.getContext(),
StartActivity.class);
startActivity(intents);
}
});
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="top"
android:orientation="horizontal" >
<RelativeLayout
android:id="@+id/relativeLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#00FFFF">
<ImageView
android:id="@+id/ImgSinger"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignBottom="@+id/TxtSinger"
android:baselineAlignBottom="true"
android:maxHeight="10dp"
android:maxWidth="10dp"
android:src="@drawable/taylor" />
<TextView
android:id="@+id/TxtTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_toRightOf="@+id/ImgSinger"
android:text="You Belong With Me"
android:textSize="16sp" />
<TextView
android:id="@+id/TxtSinger"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/TxtTitle"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"
android:layout_toRightOf="@+id/ImgSinger"
android:text="Taylor Swift"
android:textSize="12sp" />
<TextView
android:id="@+id/TxtTime"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp"
android:layout_toRightOf="@+id/TxtTitle"
android:text="4:30"
android:textSize="12sp" />
</RelativeLayout>
<Button
android:id="@+id/changeButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="Test" />
</RelativeLayout>
Androidmanifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.testandroid"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.testandroid.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".StartActicity"></activity>
<activity android:name=".PlayActivity"></activity>
</application>
</manifest>