ModuleWriterException: Invalid section RVA

[Drovosek01]

Description

I'm exploring. A dll file compiled using dotNet on a Mac with Apple Silicon processors.

I open the file in dnSpyEx v6.5.0 and then just try to save the module without any modifications

and I get an error:

An exception has occurred dnlib.DotNet.Writer.ModuleWriterException: Invalid section RVA
   at dnlib.DotNet.Writer.NativeModuleWriter.WriteFile()
   at dnlib.DotNet.Writer.NativeModuleWriter.Write()
   at dnlib.DotNet.Writer.NativeModuleWriter.WriteImpl()
   at dnlib.DotNet.Writer.ModuleWriterBase.Write(Stream dest)
   at dnlib.DotNet.Writer.ModuleWriterBase.Write(String fileName)
   at dnlib.DotNet.ModuleDefMD.NativeWrite(String filename, NativeModuleWriterOptions options)
   at dnSpy.AsmEditor.SaveModule.ModuleSaver.Save(SaveModuleOptionsVM vm) in D:\a\dnSpy\dnSpy\Extensions\dnSpy.AsmEditor\SaveModule\ModuleSaver.cs:line 187
   at dnSpy.AsmEditor.SaveModule.ModuleSaver.SaveAll() in D:\a\dnSpy\dnSpy\Extensions\dnSpy.AsmEditor\SaveModule\ModuleSaver.cs:line 151
   at dnSpy.AsmEditor.SaveModule.SaveMultiModuleVM.SaveAsync(SaveOptionsVM[] mods) in D:\a\dnSpy\dnSpy\Extensions\dnSpy.AsmEditor\SaveModule\SaveMultiModuleVM.cs:line 250

I tried to do this on Windows 10 x64 on an AMD laptop, and also tried to do it on Windows 11 ARM via Parallels Desktop and always get the same error.

Does anyone know how to fix this? Here is an example of such a file: CsvHelper dll for arm64.zip

[GazziFX]

I think you should create issue in dnlib repo

[ElektroKill]

This issue is out of scope for dnSpyEx, all further discussions such continue over on the respective dnlib issue! https://github.com/0xd4d/dnlib/issues/545