SQLite error: java.lang.IllegalArgumentException: column '_id' does not exist -

help me please, deal mistake.

this logcat:

01-31 15:20:34.768: w/dalvikvm(2166): threadid=1: thread exiting uncaught exception (group=0x40a13300)     01-31 15:20:34.878: e/androidruntime(2166): fatal exception: main     01-31 15:20:34.878: e/androidruntime(2166): java.lang.illegalargumentexception: column '_id' not exist     01-31 15:20:34.878: e/androidruntime(2166):     @ android.database.abstractcursor.getcolumnindexorthrow(abstractcursor.java:302)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.widget.cursoradapter.swapcursor(cursoradapter.java:338)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.widget.simplecursoradapter.swapcursor(simplecursoradapter.java:346)     01-31 15:20:34.878: e/androidruntime(2166):     @ ru.zloyel.manager_sutochnoy_arendy_1.kvartitymain.onloadfinished(kvartitymain.java:178)     01-31 15:20:34.878: e/androidruntime(2166):     @ ru.zloyel.manager_sutochnoy_arendy_1.kvartitymain.onloadfinished(kvartitymain.java:1)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.app.loadermanagerimpl$loaderinfo.callonloadfinished(loadermanager.java:482)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.app.loadermanagerimpl$loaderinfo.onloadcomplete(loadermanager.java:450)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.content.loader.deliverresult(loader.java:143)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.content.cursorloader.deliverresult(cursorloader.java:113)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.content.cursorloader.deliverresult(cursorloader.java:43)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.content.asynctaskloader.dispatchonloadcomplete(asynctaskloader.java:254)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.content.asynctaskloader$loadtask.onpostexecute(asynctaskloader.java:91)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.os.asynctask.finish(asynctask.java:631)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.os.asynctask.access$600(asynctask.java:177)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.os.asynctask$internalhandler.handlemessage(asynctask.java:644)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.os.handler.dispatchmessage(handler.java:99)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.os.looper.loop(looper.java:137)     01-31 15:20:34.878: e/androidruntime(2166):     @ android.app.activitythread.main(activitythread.java:4745)     01-31 15:20:34.878: e/androidruntime(2166):     @ java.lang.reflect.method.invokenative(native method)     01-31 15:20:34.878: e/androidruntime(2166):     @ java.lang.reflect.method.invoke(method.java:511)     01-31 15:20:34.878: e/androidruntime(2166):     @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:786)     01-31 15:20:34.878: e/androidruntime(2166):     @ com.android.internal.os.zygoteinit.main(zygoteinit.java:553)     01-31 15:20:34.878: e/androidruntime(2166):     @ dalvik.system.nativestart.main(native method) 

the error appears after clicking on button on main screen appears on second list , application crashes.

my class db.java:

private static final string sql_create_entries = "create table "             + table_name + " (" + kvartdb._id             + " integer primary key autoincrement, " + name_column             + " text not null, " + city_column + " text not null, "             + street_column + " text not null, " + home_column + " integer, "             + kvartira_column + " integer, " + price_column + " integer "             + ");"; 

kvartiramain.java

import android.app.listactivity; import android.app.loadermanager.loadercallbacks; import android.content.context; import android.content.cursorloader; import android.content.intent; import android.content.loader; import android.database.cursor; import android.os.bundle;  import android.view.contextmenu; import android.view.contextmenu.contextmenuinfo; import android.view.menu; import android.view.menuitem; import android.view.view; import android.widget.adapterview.adaptercontextmenuinfo; import android.widget.listview; import android.widget.simplecursoradapter;  public class kvartitymain extends listactivity implements         loadercallbacks<cursor> {      private kvartdb sqh;     private static final int activity_create = 0;     private static final int activity_edit = 1;     private static final int delete_id = menu.first + 1;      private simplecursoradapter adapter;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.kvartiry_list);         this.getlistview().setdividerheight(2);         sqh = new kvartdb(this);          filldata();         registerforcontextmenu(getlistview());     }      @override     protected void onresume() {         // todo auto-generated method stub         super.onresume();         // Первоначальный способ. Тоже работает         // cursor cursor = dbhelper.getalltodos();         // adapter.changecursor(cursor);          getloadermanager().getloader(0).forceload();     }      @override     public boolean oncreateoptionsmenu(menu menu) {         // inflate menu; adds items action bar if present.         getmenuinflater().inflate(r.menu.main, menu);         return true;     }      // Реакция на выбор меню     @override     public boolean onmenuitemselected(int featureid, menuitem item) {         switch (item.getitemid()) {         case r.id.insert:             createnewtask();             return true;         }         return super.onmenuitemselected(featureid, item);     }      @override     public boolean onoptionsitemselected(menuitem item) {         switch (item.getitemid()) {         case r.id.insert:             createnewtask();             return true;         }         return super.onoptionsitemselected(item);     }      @override     public void oncreatecontextmenu(contextmenu menu, view v,             contextmenuinfo menuinfo) {         super.oncreatecontextmenu(menu, v, menuinfo);         menu.add(0, delete_id, 0, r.string.menu_delete);     }      @override     public boolean oncontextitemselected(menuitem item) {         switch (item.getitemid()) {         case delete_id:              // получаем из пункта контекстного меню данные по пункту списка             adaptercontextmenuinfo info = (adaptercontextmenuinfo) item                     .getmenuinfo();              // извлекаем id записи и удаляем соответствующую запись в БД             sqh.deletekvart(info.id);              // получаем новый курсор с данными             getloadermanager().getloader(0).forceload();              // filldata();              return true;         }         return super.oncontextitemselected(item);     }      private void createnewtask() {         intent intent = new intent(this, kvartiry.class);         startactivityforresult(intent, activity_create);     }      private void filldata() {         // cursor = sqh.getallkvart();         // startmanagingcursor(cursor);         //         string[] = new string[] { kvartdb.name_column };         int[] = new int[] { r.id.label };          adapter = new simplecursoradapter(this, r.layout.list_row, null, from,                 to, 0);         setlistadapter(adapter);          // создаем лоадер для чтения данных         getloadermanager().initloader(0, null, this);         adapter.notifydatasetinvalidated();      }      // // Теперь создадим адаптер массива и установим его для отображения наших     // // данных     // simplecursoradapter notes = new simplecursoradapter(this,     // r.layout.list_row, cursor, from, to);     // setlistadapter(notes);     //     // }      @override     protected void onlistitemclick(listview l, view v, int position, long id) {         super.onlistitemclick(l, v, position, id);         intent intent = new intent(this, kvartiry.class);         intent.putextra(kvartdb._id, id);         // активити вернет результат если будет вызвано с помощью этого метода         startactivityforresult(intent, activity_edit);     }      @override     protected void onactivityresult(int requestcode, int resultcode,             intent intent) {         super.onactivityresult(requestcode, resultcode, intent);          if (resultcode == result_ok) {             filldata();         }      }      @override     protected void ondestroy() {         super.ondestroy();         if (sqh != null) {             sqh.close();         }      }      @override     public loader<cursor> oncreateloader(int id, bundle args) {         // todo auto-generated method stub         return new mycursorloader(this, sqh);     }      @override     public void onloadfinished(loader<cursor> loader, cursor cursor) {         // todo auto-generated method stub         adapter.swapcursor(cursor);     }      @override     public void onloaderreset(loader<cursor> loader) {         // todo auto-generated method stub         adapter.swapcursor(null);     }      static class mycursorloader extends cursorloader {         kvartdb db;          public mycursorloader(context context, kvartdb db) {             super(context);             this.db = db;         }          @override         public cursor loadinbackground() {             cursor cursor = db.getallkvart();              return cursor;         }     } } 

you're creating simplecursoradapter null cursor. null cursor doesn't contain _id column required cursor adapters.

to fix it, pass in cursor has _id in projection columns.