NoMethodError: Undefined Method 'cat_file'

Construct a nomethoderror exception for a method of the given name called with the given arguments. The name may be accessed using the name method on the resulting object, and the arguments. Oct 14, 2014i was working on a simple pi generator while learning ruby, but i kept getting nomethoderror on rubymine 6.3.3, so i decided to make a new project and new class with as simple.

Nov 8, 2022the nomethoderror is raised when an object on which we are calling the method doesn't exist. Learn how to use method_missing () to handle it. Nomethoderror , noting that it was nil that was unable to handle the message :+.

A nomethoderror resulting from attempting to call a method on nil is the most common error in ruby. The problem often arises when unexpected input is passed into a class or method. The name may be accessed using the #name method on the resulting object, and the arguments.

Throughout this article, we’ll dig a bit more into the nomethoderror, including where it sits within the ruby exception class hierarchy, as well as reviewing a few simple code examples that illustrate how.