NullReferenceException at VisitTypedefNameDecl

Reproduce the MuJoCoSharp setup from the linked repository and start at CppSharp.AST.AstVisitor.VisitTypedefNameDecl, reached through ResolveIncompleteDeclsPass. Trace the typedef that triggers the NullReferenceException and use the existing stack trace and headers to identify the missing state; done means processing no longer crashes and the reported input is handled or diagnosed clearly.

Brief Description

I'm trying to create a wrapper for MuJoCo for c# in Linux. I've downloaded the library and its include files, and followed the Getting Started doc to create the setup below. I'm getting a NullReferenceException without any information about the offending source header code or how to solve it. Full code to reproduce the issue at https://github.com/emepetres/MuJoCoSharp

Setup:

            var includeFiles = Directory.GetFiles(@"[LIBPATH]/include");

            var options = driver.Options;
            options.Verbose = true;
            options.GeneratorKind = GeneratorKind.CSharp;
            var module = options.AddModule("MuJoCo");

            module.IncludeDirs.Add(@"[LIBPATH]/include");
            module.Headers.AddRange(includeFiles);

            module.LibraryDirs.Add(@"[LIBPATH]/bin");
            module.Libraries.Add("libmujoco210.so");

Linux (Manjaro, dotnet 5.0, CppSharp v1.0.0)

Used headers

MuJoCo include files at https://github.com/deepmind/mujoco/tree/main/include

Target: C#

Stack trace or incompilable generated code

Parsing libraries...
Parsed 'libmujoco210.so'
Parsing code...
Unhandled type class 'Complex'
Parsed '/home/jcarnero/source/MuJoCoSharp/build/mujoco210/include/mjrender.h, /home/jcarnero/source/MuJoCoSharp/build/mujoco210/include/glfw3.h, /home/jcarnero/source/MuJoCoSharp/build/mujoco210/include/mjui.h, /home/jcarnero/source/MuJoCoSharp/build/mujoco210/include/mjvisualize.h, /home/jcarnero/source/MuJoCoSharp/build/mujoco210/include/uitools.c, /home/jcarnero/source/MuJoCoSharp/build/mujoco210/include/mujoco.h, /home/jcarnero/source/MuJoCoSharp/build/mujoco210/include/mjdata.h, /home/jcarnero/source/MuJoCoSharp/build/mujoco210/include/mjxmacro.h, /home/jcarnero/source/MuJoCoSharp/build/mujoco210/include/uitools.h, /home/jcarnero/source/MuJoCoSharp/build/mujoco210/include/mjmodel.h'
Processing code...
Pass 'CppSharp.Passes.ResolveIncompleteDeclsPass'
Unhandled exception. System.NullReferenceException: Object reference not set to an instance of an object.
   at CppSharp.AST.AstVisitor.VisitTypedefNameDecl(TypedefNameDecl typedef)
   at CppSharp.AST.AstVisitor.VisitTypedefDecl(TypedefDecl typedef)
   at CppSharp.AST.TypedefDecl.Visit[T](IDeclVisitor`1 visitor)
   at CppSharp.AST.AstVisitor.VisitDeclarationContext(DeclarationContext context)
   at CppSharp.Passes.TranslationUnitPass.VisitTranslationUnit(TranslationUnit unit)
   at CppSharp.Passes.TranslationUnitPass.VisitASTContext(ASTContext context)
   at CppSharp.Passes.ResolveIncompleteDeclsPass.VisitASTContext(ASTContext c)
   at CppSharp.Generators.BindingContext.<RunPasses>b__37_0(TranslationUnitPass pass)
   at CppSharp.PassBuilder`1.RunPasses(Action`1 action)
   at CppSharp.Generators.BindingContext.RunPasses()
   at CppSharp.Driver.ProcessCode()
   at CppSharp.ConsoleDriver.Run(ILibrary library)
   at BindingGenerator.Program.Main(String[] args) in /home/jcarnero/source/MuJoCoSharp/src/BindingGenerator/Program.cs:line 12