Assets file '/home/runner/work/MaxMind-DB-Reader-dotnet/MaxMind-DB-Reader-dotnet/MaxMind.Db.Benchmark/obj/project.assets.json' doesn't have a target for 'netcoreapp3.1'. Ensure that restore has run and that you have included 'netcoreapp3.1' in the TargetFrameworks for your project.

Process completed with exit code 1.