Errors and Output is missing

Tell us what’s happening:

Why does the terminal/console not print the errors, or the output on challenges so that we can better figure out what our error is.

I get, “error occured” but it does not say what the error is.
I get, " … should return …" but doesn’t show me what my output was.

my program works on my local IDE, before I even transfer it over to freeCodeCamp.

Your code so far

def create_board(dimensions):
    row = dimensions[1]
    col = dimensions[0]
    board = []
    x = True
    for _ in range(row):
        board.append([])
        
    for i in range(row):
        for j in range(col):
            if x:
                board[i].append("X")
                x = False
            else:
                board[i].append("O")
                x = True
    return board

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36 Edg/143.0.0.0

Challenge Information:

Daily Coding Challenge - Checkerboard
https://www.freecodecamp.org/learn/daily-coding-challenge/2025-12-18

The console is printing output when I run your code and use a function call with a print statement.

add print(create_board([6, 1])) to check what your function is returning, then you will see something in the terminal