AWS CodeDeploy问题：无法在appspec文件中运行挂钩

I have just started working with AWS. I am trying to deploy a nodejs application using codeship and AWS codedeploy. I am successful in deploying the application from codeship to Ec2 instance. But the problem is that I am not able to run the hooks file in appspec.yml. My appspec.yml is given below:I have just started working with AWS. I am tryi