NavigationDrawer unable to instatiate application java.lang.classnotfoundexception - class

Question

I`m developing an app. And at this part I only have an activity for my Navigation Drawer.
Im trying to run but I get the same Exception everytime.. Ive searched for some time, tried a lot of things but nothing worked.
Here`s my logcat:
02-23 17:45:09.379: E/AndroidRuntime(3364): FATAL EXCEPTION: main
02-23 17:45:09.379: E/AndroidRuntime(3364): Process: com.example.testedrawer, PID: 3364
02-23 17:45:09.379: E/AndroidRuntime(3364): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.testedrawer/com.example.testedrawer.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.example.testedrawer.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.testedrawer-2/base.apk"],nativeLibraryDirectories= [/vendor/lib, /system/lib]]
02-23 17:45:09.379: E/AndroidRuntime(3364): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)
02-23 17:45:09.379: E/AndroidRuntime(3364): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
02-23 17:45:09.379: E/AndroidRuntime(3364): at android.app.ActivityThread.access$800(ActivityThread.java:144)
02-23 17:45:09.379: E/AndroidRuntime(3364): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
02-23 17:45:09.379: E/AndroidRuntime(3364): at android.os.Handler.dispatchMessage(Handler.java:102)
02-23 17:45:09.379: E/AndroidRuntime(3364): at android.os.Looper.loop(Looper.java:135)
02-23 17:45:09.379: E/AndroidRuntime(3364): at android.app.ActivityThread.main(ActivityThread.java:5221)
02-23 17:45:09.379: E/AndroidRuntime(3364): at java.lang.reflect.Method.invoke(Native Method)
02-23 17:45:09.379: E/AndroidRuntime(3364): at java.lang.reflect.Method.invoke(Method.java:372)
02-23 17:45:09.379: E/AndroidRuntime(3364): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
02-23 17:45:09.379: E/AndroidRuntime(3364): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
02-23 17:45:09.379: E/AndroidRuntime(3364): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.testedrawer.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.testedrawer-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
02-23 17:45:09.379: E/AndroidRuntime(3364): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
02-23 17:45:09.379: E/AndroidRuntime(3364): Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
My Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.testedrawer"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".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>
</application>
Please help me..

Answer 1

Ive already fixed it. Ive tried so many things that didn't work on Eclipse. Than I tried to do it on Android Studio.. And it worked! Thanks for your help, though!