Not possible to generate routes in vercel

[RyanHolanda]

I'm trying to generate routes in a vercel build using dart run routefly in a Flutter Web App. But I'm getting an error that don't let me deploy my app:

Unhandled exception:
ProcessException: No such file or directory
  Command: dart format lib/zup_app.route.dart
#0      _ProcessImpl._runAndWait (dart:io-patch/process_patch.dart:488:7)
#1      _runNonInteractiveProcessSync (dart:io-patch/process_patch.dart:633:18)
#2      Process.runSync (dart:io-patch/process_patch.dart:68:12)
#3      GenerateRoutes.call (package:routefly/src/usecases/generate_routes.dart:106:13)
<asynchronous suspension>
#4      main (file:///vercel/.pub-cache/git/routefly-bc6593a8fe4ea21f4bc66f6995fc9e35bc1b9306/bin/routefly.dart:26:5)
<asynchronous suspension>

Steps to reproduce

1. Create a Flutter Web App
2. Add Routefly and Configure
3. Deploy it to vercel running routefly generator in the build command part
4. You got the same error