The "--output" option isn't supported when building a solution. Specifying a solution-level output path results in all projects copying outputs to the same directory, which can lead to inconsistent builds.

Nullability of reference types in type of parameter 'x' of 'bool SolutionComparer.Equals(Solution x, Solution y)' doesn't match implicitly implemented member 'bool IEqualityComparer<Solution>.Equals(Solution? x, Solution? y)' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'y' of 'bool SolutionComparer.Equals(Solution x, Solution y)' doesn't match implicitly implemented member 'bool IEqualityComparer<Solution>.Equals(Solution? x, Solution? y)' (possibly because of nullability attributes).

Unboxing a possibly null value.

Nullability of reference types in type of parameter 'x' of 'bool SolutionComparer.Equals(Solution x, Solution y)' doesn't match implicitly implemented member 'bool IEqualityComparer<Solution>.Equals(Solution? x, Solution? y)' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'y' of 'bool SolutionComparer.Equals(Solution x, Solution y)' doesn't match implicitly implemented member 'bool IEqualityComparer<Solution>.Equals(Solution? x, Solution? y)' (possibly because of nullability attributes).