[Android_error] Unable to find explicit activity class

05-08 20:25:10.781: E/AndroidRuntime(7152):
Caused by:
android.content.ActivityNotFoundException:
Unable to find explicit activity class
{com.example.sonexam/com.exam.son.MyInfo};
have you declared this activity in your AndroidManifest.xml?

1) AndroidManifest.xml 에 추가한 activity를 제대로 추가했는지 확인하자

2) 추가 했다면 package 경로, class 명을 를 확인하자