无法使用fs nodejs读取文件

I am new bee in learning node js. I am trying to read a file from the same directory and then to print its contents using file system's (fs) readFile method. I see that the program is not entering into this method when I run it. I tried putting console.log() in readFile method and I see it is not printing anything inside this method.I am new bee in learning node js. I am trying t