angular.js：13424错误：[ng：areq]参数'fn'不是函数，得到了Object

I'm new to programming in html/JS/AngularJS. I'm trying to implement a simple angular component but i keep getting errors. I looked at other answers and can't find the solution why this simple implementation is creating the error in the console (the error is mentioned in title). please help. I'm new to programming in html/JS/AngularJS. I'