Erro: Caused by: java.lang.ClassNotFoundException [RESOLVIDO]

Mobile
#1

Bom, estou desenvolvendo um aplicativo que simula um aplicativo de locadora, porem esta dando esse erro

05-21 21:52:53.836: E/AndroidRuntime(1071): FATAL EXCEPTION: main
05-21 21:52:53.836: E/AndroidRuntime(1071): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.zamba.locadora/com.zamba.locadora.PrincipalLocadora}: java.lang.ClassNotFoundException: Didn't find class "com.zamba.locadora.PrincipalLocadora" on path: /data/app/com.zamba.locadora-1.apk
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at android.app.ActivityThread.access$600(ActivityThread.java:141)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at android.os.Handler.dispatchMessage(Handler.java:99)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at android.os.Looper.loop(Looper.java:137)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at android.app.ActivityThread.main(ActivityThread.java:5041)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at java.lang.reflect.Method.invokeNative(Native Method)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at java.lang.reflect.Method.invoke(Method.java:511)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at dalvik.system.NativeStart.main(Native Method)
05-21 21:52:53.836: E/AndroidRuntime(1071): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.zamba.locadora.PrincipalLocadora" on path: /data/app/com.zamba.locadora-1.apk
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
05-21 21:52:53.836: E/AndroidRuntime(1071): 	... 11 more

o codigo da activity principal

package com.zamba.locadora;

import java.util.List;

import com.zamba.locadora.dao.FilmesDAO;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ListView;

public class ActivityPrincipal extends Activity {
	
	private ListView listaFilmes;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.tela_principal);
		listaFilmes = (ListView) findViewById(R.id.listaFilmesPrincipal);
	}
	
	@Override
	protected void onResume() {
		// TODO Auto-generated method stub
		super.onResume();
		CarregaLista carregaLista = new CarregaLista(ActivityPrincipal.this);
		List<Filmes> filme=carregaLista.getLista();
		FilmesAdapter adapter = new FilmesAdapter(filme,this);
		listaFilmes.setAdapter(adapter);				
	}

}

Acredito que o erro esteja acontecendo por ai, qualquer coisa posto o resto.

Edit: Por algum motivo fechei o emulador e o eclipse e funcionou O.O

#2