Error running lambda function locally when using NVM

I am trying to debug my lambda function locally. I just followed the following instructions so I can use Visual Studio code.

https://docs.aws.amazon.com/toolkit-for-vscode/latest/userguide/serverless-apps-run-debug-no-template.html

But I am running into an error :

[INFO]: Error: NodejsNpmBuilder:Resolver - Path resolution for runtime: nodejs14.x of binary: npm was not successful

I am running NVM. I am not sure if this is related to my issue.

Below is my launch.json

{
  "configurations": [
    {
      "type": "aws-sam",
      "request": "direct-invoke",
      "name": "employeedetails:app.lambdaHandler (nodejs14.x)",
      "invokeTarget": {
        "target": "code",
        "projectRoot": "${workspaceFolder}/users",
        "lambdaHandler": "app.lambdaHandler"
      },
      "lambda": {
        "runtime": "nodejs14.x",
        "payload": {},
        "environmentVariables": {}
      }
    }
  ]
}

Please help.