java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{…}: java.lang.ClassNotFoundException: Didn't find class

Since your exception is:

ClassNotFoundException: Didn't find class "com.kpbird.fusedlocation.MainActivity"

into your AndroidManifest.xml add the complete package were your activity is located:

<activity
                android:name="com.kpbird.fusedlocation.MainActivity"

or be sure to have to correct package name defined:

package="com.kpbird.fusedlocation"

I think you typed incorrectly the package of your application in some place of your code!