이번에 졸작으로 안드로이드앱을 만들고 있었는데
액티비티를 실행하니 이와같은 에러가 나왔습니다.
3시간동안 해석해도 안되서......
도와주세요.ㅠㅠ
FATAL EXCEPTION: main
10-31 13:09:59.502: E/AndroidRuntime(24156): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.daegu.palgongmountaintour/com.daegu.palgongmountaintour.olleway_activity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2110)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2135)
at android.app.ActivityThread.access$700(ActivityThread.java:143)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1241)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4950)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:997)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:764)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:224)
at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:164)
at com.daegu.palgongmountaintour.palgong_DBhander.<init>(palgong_DBhander.java:18)
at com.daegu.palgongmountaintour.olleway_activity.onCreate(olleway_activity.java:26)
at android.app.Activity.performCreate(Activity.java:5177)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2074)