What can I do to fix this error?

BJP5 Exercise 10.7: removeDuplicates Language/Type: $ Java ArrayList Collections Author: Marty Stepp (on 2019/09/19) Write a method removeduplicates that takes as a parameter a sorted ArrayList of Strings and that eliminates any duplicates from the list. For example, suppose that a variable called list contains the following values: \{"be", "be", "is", "not", "or", "question", "that", "the", "to", "to"\} After calling removeduplicates ( list); the list should store the following values: \{"be", "is", "not", "or", "question", "that", "the", "to"\} Because the values will be sorted, all of the duplicates will be grouped together. Type your solution here: You passed 4 of 5 tests. Try again