API calls + environment variables = failed builds

I need help with setting properly environment variables with API.

I have added API Calls to my backend. When i run test calls using FF Response & Test they work fine.

However when i build, build fails with following error:

(...)
Running pod install...                                           1,623ms
Running Xcode build...                                          
Xcode build done.                                           21.7s
Failed to build iOS app
Error (Xcode): lib/backend/api_requests/api_calls.dart:52:5: Error: Local variable 'baseUrl' can't be referenced before it is declared.

Could not build the application for the simulator.
Error launching application on iPhone 16 Pro.

I have downloaded code to see where exactly is the problem:

How i have my API and variables set up:

• API

  • API Base URL set as [base_url] parameter (it will be different for different environments)

    

  • set up group variable base_url
    

    

• Environment: development

  • defined apiURL variable with my localhost endpoint
    

    

• In all actions using API calls i am providing value for base_url indicating environment apiURL variable