Void函数导致编译器错误“变量或字段”的函数名被宣告无效。

I have declared a helper function to a method of a class I declared in a header file, and for some reason when I compile the source code file I get an error telling me that I declared a variable or field as void. I am not sure how to interpret this since my goal was for the function to be declared void. I have declared a helper function to a method o