title: Struggle between NodeJS version 14 and 15 for AWS Lambda serverless Project
body: <p>My node version is 16, however when I start to create a AWS project and when deploy it, an error appears .</p>
  <pre><code>An error occurred: HelloLambdaFunction - Resource handler returned message: &quot;Uploaded file must be a non-empty zip ) 
  </code></pre>
  <p>The solution is downgrading my node version to 14 ( I search on the internet ), but only node version higher than 15 can support ??= operator in my another project. Now I am so confused.</p>
  <p>Please teach me how to solve this, thank for your attention.</p>