TypeError: join() argument must be str, bytes, or os.PathLike object, not 'list'

This error occurs when you try to use the join() method with a list as an argument instead of a string, bytes, or a PathLike object. The join() method is used to concatenate a list of strings into a single string with a delimiter.

To fix this error, you need to convert the list to a string or a PathLike object before passing it to the join() method. Here's an example:

my_list = ['apple', 'banana', 'orange']
delimiter = ', '

# Convert the list to a string before joining
my_string = delimiter.join(my_list)
print(my_string)

# Output: 'apple, banana, orange'

In this example, we first define a list called `my_list` and a delimiter called `delimiter`. We then convert the list to a string using the join() method and store the result in the `my_string` variable. Finally, we print the `my_string` variable, which outputs the concatenated string with the delimiter.