Bad state: Unexpected diagnostics: after flutter upgrade to 1.20.1

Question

What is the issue?

xxx@xxx-Inspiron-14-3467:~/xxx$ flutter pub run build_runner build[INFO] Generating build script...
[INFO] Generating build script complete         


        

Answer 1

I had the same issue:

Please try this in your pubspec file

dependency_overrides:
  analyzer: '0.39.17'    
  build_resolvers: '1.3.10'