Im not sure what I'm doing wrong

In the code challenge the instruction are the folloging: Finally, write a 'for' loop that loops through 'jsonBooks'. In each step of the loop, use 'getJSONObject(int index)' to get a JSONObject from the array. Then use the 'Log.i()' method (with "CodeChallenge" as the tag) to write the book title, a comma, a space, and the number of pages. Ex. output: 'Book title 1, 300'.

I'm writting the following:

                String name = jsonData.getString("name");
                        String publisher = jsonData.getString("publisher");
                        String language = jsonData.getString("language");
                //Log.v(TAG,status);
                JSONArray jsonBooks = jsonData.getJSONArray("books");
                for(int i = 0; i < jsonBooks.length(); i++){

JSONObject jsonPost = jsonBooks.getJSONObject(i); String title = jsonPost.getString("title"); String pages = jsonPost.getString("pages");
Log.i("CodeChallenge", "Book title, " + title + pages);}

but I dont know why im getting it wrong.