How delete file is not my projects?

How delete file is not my projects?

My path projects com.dron.one. I delete table from file http://ift.tt/1G9hew4

sqLiteDatabase.delete("DBMeta",null,null);

android.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (code 14): Could not open database

How do I get my application to see someone else's database file ?

My code

final File file=new File("//data/data/com.but.raider/files/desmon");
textView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            SQLiteDatabase sqLiteDatabase= new SQLiteOpenHelper(MainActivity.this,file.getPath()+"/msn.db",null,1) {
                @Override
                public void onCreate(SQLiteDatabase db) {

                }

                @Override
                public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

                }
            }.getWritableDatabase();

            sqLiteDatabase.delete("DBMeta",null,null);
            sqLiteDatabase.close();
        }
    });