Command-line tool fails with "Sequence contains more than one matching element"

I’ve just installed the command-line tool, and when I run it on a C# assembly built with Visual Studio 2019 I get the following:

defaultdocumentation.exe -a MyAssembly.dll -d MyAssembly.xml
Unhandled exception. System.InvalidOperationException: Sequence contains more than one matching element
   at System.Linq.ThrowHelper.ThrowMoreThanOneMatchException()
   at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source, Func`2 predicate)
   at CommandLine.Core.TypeLookup.FindTypeDescriptorAndSibling(String name, IEnumerable`1 specifications, StringComparer comparer)
   at CommandLine.Core.InstanceBuilder.<>c__DisplayClass0_0`1.<Build>b__9(String name)
   at CommandLine.Core.Switch.<>c__DisplayClass0_0.<Partition>b__0(Token t)
   at System.Linq.Enumerable.WhereArrayIterator`1.MoveNext()
   at System.Collections.Generic.HashSet`1.UnionWith(IEnumerable`1 other)
   at System.Collections.Generic.HashSet`1..ctor(IEnumerable`1 collection, IEqualityComparer`1 comparer)
   at CommandLine.Core.TokenPartitioner.Partition(IEnumerable`1 tokens, Func`2 typeLookup)
   at CommandLine.Core.InstanceBuilder.<>c__DisplayClass0_0`1.<Build>b__5()
   at CommandLine.Core.InstanceBuilder.Build[T](Maybe`1 factory, Func`3 tokenizer, IEnumerable`1 arguments, StringComparer nameComparer, Boolean ignoreValueCase, CultureInfo parsingCulture, Boolean autoHelp, Boolean autoVersion, IEnumerable`1 nonFatalErrors)
   at CommandLine.Parser.ParseArguments[T](IEnumerable`1 args)
   at DefaultDocumentation.Program.Main(String[] args) in D:\a\DefaultDocumentation\DefaultDocumentation\source\DefaultDocumentation.Console\Program.cs:line 23

Any idea what I could be missing here? The assembly and xml file are both valid.

Max

[IggaF]

@Doraku Hi, I’ve tested it - works 😃 Thanks a lot!

[Doraku]

There is also a preview version for the msbuild task, but I created an official version 0.7.3 with the fix anyway. Could you confirm that it fixes the problem please 😃?