The method setAttribute(String, Object) in the type HttpSession is not applicable for the arguments (String)

This error message suggests that you are trying to call the `setAttribute` method of the `HttpSession` class with a single argument of type `String`, but this method requires two arguments: a `String` representing the attribute name and an `Object` representing the attribute value.

To resolve this issue, you need to provide both the attribute name and value as arguments when calling the `setAttribute` method. Here's an example:

HttpSession session = request.getSession();
String attributeName = "exampleAttribute";
String attributeValue = "exampleValue";
session.setAttribute(attributeName, attributeValue);

Make sure to replace `"exampleAttribute"` and `"exampleValue"` with the actual names and values you want to set for the session attribute.