I am in the process of writing my own class for CV/Resume purposes, with the help of this website. However, when I compile cv.tex I get an error of undefined control sequence and also a missing \begin{document error}. Below I have included the code for cv.tex and my_cv.cls (the class file I am writing). I am unable to figure out what exactly has been causing these errors, but when I build into PDF, I get the desired output but with a blank page preceding it (the error messages do not go away).
cv.tex:
\documentclass{my_cv}
\begin{document}
\section{Education}
\datedsubsection{University of Blah}{2016--}
\section{Employment}
\subsection{Blah Blah}
\end{document}
my_cv.cls:
\NeedsTexFormat{LaTeX2e}
\ProvidesClass{my_cv}[2016/07/23]
\LoadClass{article}
\RequirePackage{titlesec}
\titleformat{\section}
{\Large\scshape\raggedright}
{}{0em}
{}
[\titlerule]
\titleformat{\subsection}
{\large\raggedright}
{}{0em}
{}
\newcommand{\datedsection}[2]{
\section[#1]{#1 \hfill #2}
}
\newcommand{\datedsubsection}[2]{
\subsection[#1]{#1 \hfill #2}
}