Fix Flutter Build Dependency Error

My Flutter app refuses to finish compiling because of a dependency issue. I’m working with an authcontroller-based setup and, somewhere in the dependency chain, versions are clashing and the build grinds to a halt.

I need a developer who can jump in, trace the conflicting packages, adjust the versions or configuration, and get the project building cleanly again. A quick, methodical approach that leaves the project fully reproducible (flutter clean → flutter build still succeeds) is essential.

Please include examples of past work where you resolved similar Flutter or Dart dependency problems so I can see how you tackle issues like this. Once complete, I’ll test the fix on my side; if the build passes without errors, the job is done.