D:\a\fluentassertions\fluentassertions\Tests\FluentAssertions.Specs\Execution\AssertionChainSpecs.Chaining.cs(310,10): error CS1519: Invalid token '¡' in class, record, struct, or interface member declaration [D:\a\fluentassertions\fluentassertions\Tests\FluentAssertions.Specs\FluentAssertions.Specs.csproj::TargetFramework=net47]