armanriazi rust error E0615 attempted to take value of method `collect` on type

Error E0615: Attempted to take value of method collect on type

The error E0615 occurs in Rust when you try to take the value of the collect method on a type instead of calling it as a method on an iterator. The collect method is used to consume an iterator and collect its elements into a collection, such as a Vec or HashSet.

To fix this error, make sure that you are calling the collect method on an iterator and not on a type itself. Here's an example:

fn main() {
    let numbers = vec![1, 2, 3, 4, 5];
    let sum: i32 = numbers.iter().sum(); // Correct usage of `collect` method

    println!("Sum: {}", sum);
}

In this example, we create a vector numbers and then call the iter method on it to get an iterator over its elements. We then call the sum method on the iterator to calculate the sum of all the elements. Finally, we assign the result to the variable sum and print it.

Make sure to check your code and ensure that you are using the collect method correctly by calling it on an iterator.