Java.lang.IllegalArgumentException: column '_id' does not exist

Its a common error when we use a data adapter in ANDROID for the first time. I used it to extract all the contacts.

So we declare a SimpleCursorAdapter as follows

SimpleCursorAdapter adapter = new SimpleCursorAdapter(
      this,
      R.layout.contactsview,
      c,
      projection,
      new int[] {R.id.contactEntryText}
);

I used the projections as follows

   String [] projection = new String []  {
      ContactsContract.Contacts.DISPLAY_NAME
    };

I got the exception Java.lang.IllegalArgumentException: column '_id' does not exist.

Make sure that the projection you have mentioned above do contain a field called as ContactsContract.Contacts._ID.

So you have to redeclare the array projection as

String [] projection = new String []  { 
        ContactsContract.Contacts.DISPLAY_NAME, 
        ContactsContract.Contacts._ID
};

Thats it. Now you are good to go !!!!!!!!