App Instantly Failing - ReferenceError: File is not defined

[drveresh]

Describe the bug

Env: MacOs: Apple M3, Sequoa Version 15.7.1 (24G231);

It is failing immediately after running ($copilot). Below are some errors:
file:///Users/veedevireddy/.nvm/versions/node/v18.19.0/lib/node_modules/@github/copilot/index.js:648
`,r=e.pad||" ",a=l!=="right"?lKn:nKn,I=!1;Array.isArray(t)||(I=!0,t=String(t).split(n));let s,o=0;return t=t.map(function(c){return c=String(c),s=tKn(c),o=Math.max(s,o),{str:c,width:s}}).map(function(c){return new Array(a(o,c.width)+1).join(r)+c.str}),I?t.join(n):t}qO.left=function(e){retur........ long code, then
ReferenceError: File is not defined
at file:///Users//.nvm/versions/node/v18.19.0/lib/node_modules/@github/copilot/index.js:648:254590
at file:///Users//.nvm/versions/node/v18.19.0/lib/node_modules/@github/copilot/index.js:18:501
at file:///Users//.nvm/versions/node/v18.19.0/lib/node_modules/@github/copilot/index.js:648:260765
at file:///Users//.nvm/versions/node/v18.19.0/lib/node_modules/@github/copilot/index.js:18:501
at file:///Users//.nvm/versions/node/v18.19.0/lib/node_modules/@github/copilot/index.js:775:2298
at file:///Users//.nvm/versions/node/v18.19.0/lib/node_modules/@github/copilot/index.js:18:501
at file:///Users//.nvm/versions/node/v18.19.0/lib/node_modules/@github/copilot/index.js:775:8998
at file:///Users//.nvm/versions/node/v18.19.0/lib/node_modules/@github/copilot/index.js:18:501
at file:///Users//.nvm/versions/node/v18.19.0/lib/node_modules/@github/copilot/index.js:775:28855
at file:///Users//.nvm/versions/node/v18.19.0/lib/node_modules/@github/copilot/index.js:18:501

Affected version

No response

Steps to reproduce the behavior

$copilot

Expected behavior

Show the splash screen or intro app screen, as in https://www.npmjs.com/package/@github/copilot

Additional context

No response

[Riley-Mathieu]

Getting the same behavior in Ubuntu 22.04

ReferenceError: File is not defined
    at file:///usr/lib/node_modules/@github/copilot/index.js:648:254590
    at file:///usr/lib/node_modules/@github/copilot/index.js:18:501
    at file:///usr/lib/node_modules/@github/copilot/index.js:648:260765
    at file:///usr/lib/node_modules/@github/copilot/index.js:18:501
    at file:///usr/lib/node_modules/@github/copilot/index.js:775:2298
    at file:///usr/lib/node_modules/@github/copilot/index.js:18:501
    at file:///usr/lib/node_modules/@github/copilot/index.js:775:8998
    at file:///usr/lib/node_modules/@github/copilot/index.js:18:501
    at file:///usr/lib/node_modules/@github/copilot/index.js:775:28855
    at file:///usr/lib/node_modules/@github/copilot/index.js:18:501

Node.js v18.17.1

[Riley-Mathieu]

@drveresh the README says copilot requires Node v22 or higher.

Updating to 22.21.0 fixed it for me.
https://askubuntu.com/questions/426750/how-can-i-update-my-nodejs-to-the-latest-version

[examon]

This appears to be addressed in current releases. The CLI now checks your Node.js version before loading, so if you're running Node older than v24, you should see a clear message (GitHub Copilot CLI requires Node.js v24 or higher) instead of the cryptic ReferenceError: File is not defined crash. Upgrading to Node.js v24 or higher should resolve this. If you're still seeing this on the latest release, feel free to reopen.