01-12 03:26:01.943: E/AndroidRuntime(335): FATAL EXCEPTION:
main

01-12 03:26:01.943: E/AndroidRuntime(335): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.testPro/com.testPro.app.testProActivity}: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.testPro/com.testPro.app.GroupMenuActivity}; have you declared this activity in your AndroidManifest.xml?

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.app.ActivityThread.access$1500(ActivityThread.java:117)

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.os.Handler.dispatchMessage(Handler.java:99)

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.os.Looper.loop(Looper.java:123)

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.app.ActivityThread.main(ActivityThread.java:3683)

01-12 03:26:01.943: E/AndroidRuntime(335):  at java.lang.reflect.Method.invokeNative(Native Method)

01-12 03:26:01.943: E/AndroidRuntime(335):  at java.lang.reflect.Method.invoke(Method.java:507)

01-12 03:26:01.943: E/AndroidRuntime(335):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)

01-12 03:26:01.943: E/AndroidRuntime(335):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)

01-12 03:26:01.943: E/AndroidRuntime(335):  at dalvik.system.NativeStart.main(Native Method)

01-12 03:26:01.943: E/AndroidRuntime(335): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.testPro/com.testPro.app.GroupMenuActivity}; have you declared this activity in your AndroidManifest.xml?

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405)

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.app.Activity.startActivityForResult(Activity.java:2827)

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.app.Activity.startActivity(Activity.java:2933)

01-12 03:26:01.943: E/AndroidRuntime(335):  at com.testPro.app.testProActivity.FUN_goAction(testProActivity.java:124)
01-12 03:26:01.943: E/AndroidRuntime(335):  at com.testPro.app.testProActivity.onCreate(testProActivity.java:57)

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)

01-12 03:26:01.943: E/AndroidRuntime(335):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
==========================================================================

              intent.setClass(testProActivity.this,GroupMenuActivity.class);
              startActivity(intent);

여기에서 에러가 납니다

두시간째 해매고 있습니다

아시는분은 알려주시면 감사하겠습니다