An object reference is required for the non-static field, method, or property 'PositionFrequencyAnalysis.PeptidePTMOccupancy(List<Tuple<string, string, List<string>, double>>, bool, bool)'

An object reference is required for the non-static field, method, or property 'PositionFrequencyAnalysis.PeptidePTMOccupancy(List<Tuple<string, string, List<string>, double>>, bool, bool)'

Process completed with exit code 1.

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

Field 'SpectralSimilarity._keepAllTheoreticalPeaks' is never assigned to, and will always have its default value false

Nullability of type of parameter 'obj' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'obj' doesn't match overridden member (possibly because of nullability attributes).

Cannot convert null literal to non-nullable reference type.

Nullability of type of parameter 'o' doesn't match overridden member (possibly because of nullability attributes).

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.