Target "Push" has thrown an exception

Process completed with exit code 1.

D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\Utils\OptionDescriptor.cs(5,22): warning CS8618: Non-nullable property 'Property' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\DeclarativeCommandLine.csproj]

D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\Utils\OptionDescriptor.cs(7,16): warning CS8618: Non-nullable property 'Option' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\DeclarativeCommandLine.csproj]

D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\DeclarativeCommandLineFactory.cs(8,19): warning CS9113: Parameter 'serviceProvider' is unread. [D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\DeclarativeCommandLine.csproj]

D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\Attributes\CommandAttribute.cs(6,9): warning CS8618: Non-nullable property 'Parent' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\DeclarativeCommandLine.csproj]

D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\Attributes\CommandAttribute.cs(10,9): warning CS8618: Non-nullable property 'Parent' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\DeclarativeCommandLine.csproj]

D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\Extensions\ServiceCollectionExtensions.cs(62,10): warning CS8634: The type 'DeclarativeCommandLine.Utils.CommandDescriptor?' cannot be used as type parameter 'TService' in the generic type or method 'ServiceCollectionServiceExtensions.AddTransient<TService>(IServiceCollection, Func<IServiceProvider, TService>)'. Nullability of type argument 'DeclarativeCommandLine.Utils.CommandDescriptor?' doesn't match 'class' constraint. [D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\DeclarativeCommandLine.csproj]

D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\Extensions\ServiceCollectionExtensions.cs(64,18): warning CS8621: Nullability of reference types in return type of 'lambda expression' doesn't match the target delegate 'Func<IServiceProvider, CommandDescriptor?>' (possibly because of nullability attributes). [D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\DeclarativeCommandLine.csproj]

D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\Utils\ArgumentDescriptor.cs(5,18): warning CS8618: Non-nullable property 'Argument' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\DeclarativeCommandLine.csproj]

D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\Utils\ArgumentDescriptor.cs(7,22): warning CS8618: Non-nullable property 'Property' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [D:\a\declarative-command-line\declarative-command-line\src\10-Lib\DeclarativeCommandLine\DeclarativeCommandLine.csproj]