Gettting Error while running node lib/cli.js upload command

[RushV]

While running the command with a dirty file i am having a below issue.

Command Ran : node lib/cli.js upload --configFilePath offline-events/demo-offline-events/config-test-upload-dirty.json --inputFilePath dirtyfiles/abc.csv --accessToken $access_token --apiVersion $api_version --dataSetID $data_set_id

Error:
/lib/cli-upload.js:39
async function main() {
^^^^^^^^

SyntaxError: Unexpected token function
at exports.runInThisContext (vm.js:53:16)
at Module._compile (module.js:373:25)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Function.Module.runMain (module.js:441:10)
at startup (node.js:140:18)
at node.js:1043:3