在日历工作时以编程方式添加事件它运行良好但现在代码通过我的方法addEvents成功通过所有数据传递错误，但是当我检查日历时我的事件没有出现
出现此错误：
06-20 16:29:25.137: E/DatabaseUtils(20244): Error inserting calendar_id=2 title=Rfihcd dtstart=1403866800000 dtend=1403869500000 _id=23 organizer=jsmith16420@gmail.com dirty=1 lastDate=1403869500000 eventTimezone=Asia/Karachi into table Events
06-20 16:29:25.137: E/DatabaseUtils(20244): android.database.sqlite.SQLiteConstraintException: PRIMARY KEY must be unique (code 19)
06-20 16:29:25.137: E/DatabaseUtils(20244): at android.database.sqlite.SQLiteConnection.nativeExecuteForLastInsertedRowId(Native Method)
06-20 16:29:25.137: E/DatabaseUtils(20244): at android.database.sqlite.SQLiteConnection.executeForLastInsertedRowId(SQLiteConnection.java:775)
06-20 16:29:25.137: E/DatabaseUtils(20244): at android.database.sqlite.SQLiteSession.executeForLastInsertedRowId(SQLiteSession.java:788)
06-20 16:29:25.137: E/DatabaseUtils(20244): at android.database.sqlite.SQLiteStatement.executeInsert(SQLiteStatement.java:86)
06-20 16:29:25.137: E/DatabaseUtils(20244): at android.database.DatabaseUtils$InsertHelper.insertInternal(DatabaseUtils.java:1102)
06-20 16:29:25.137: E/DatabaseUtils(20244): at android.database.DatabaseUtils$InsertHelper.insert(DatabaseUtils.java:1227)
06-20 16:29:25.137: E/DatabaseUtils(20244): at com.android.providers.calendar.CalendarDatabaseHelper.eventsInsert(CalendarDatabaseHelper.java:271)
06-20 16:29:25.137: E/DatabaseUtils(20244): at com.android.providers.calendar.CalendarProvider2.insertInTransaction(CalendarProvider2.java:2174)
06-20 16:29:25.137: E/DatabaseUtils(20244): at com.android.providers.calendar.SQLiteContentProvider.insert(SQLiteContentProvider.java:96)
06-20 16:29:25.137: E/DatabaseUtils(20244): at android.content.ContentProvider$Transport.insert(ContentProvider.java:201)
06-20 16:29:25.137: E/DatabaseUtils(20244): at android.content.ContentProviderNative.onTransact(ContentProviderNative.java:148)
06-20 16:29:25.137: E/DatabaseUtils(20244): at android.os.Binder.execTransact(Binder.java:351)
06-20 16:29:25.137: E/DatabaseUtils(20244): at dalvik.system.NativeStart.run(Native Method)