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baml decompiler error with namespace on unreferenced assembly #1436

weltkante opened this Issue Mar 1, 2019 · 0 comments


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weltkante commented Mar 1, 2019

Apparently it is valid xaml to have a namespace against an assembly which you do not reference. You can't use that namespace but it is recorded into the baml and causes ILSpy to fail decompilation


<Window x:Class="WpfSandbox.MainWindow"

fails with

System.ArgumentNullException: Der Wert darf nicht NULL sein.
Parametername: asm
   bei ILSpy.BamlDecompiler.Xaml.NamespaceMap..ctor(String prefix, IModule asm, String xmlNs, String clrNs) in E:\_code\_dev\ilspy\ILSpy.BamlDecompiler\Xaml\NamespaceMap.cs:Zeile 39.
   bei ILSpy.BamlDecompiler.XmlnsDictionary.SetPIMapping(String xmlNs, String clrNs, IModule assembly) in E:\_code\_dev\ilspy\ILSpy.BamlDecompiler\XmlnsDictionary.cs:Zeile 63.
   bei ILSpy.BamlDecompiler.XamlContext.BuildPIMappings(BamlDocument document) in E:\_code\_dev\ilspy\ILSpy.BamlDecompiler\XamlContext.cs:Zeile 86.
   bei ILSpy.BamlDecompiler.XamlContext.Construct(IDecompilerTypeSystem typeSystem, BamlDocument document, CancellationToken token, BamlDecompilerOptions bamlDecompilerOptions) in E:\_code\_dev\ilspy\ILSpy.BamlDecompiler\XamlContext.cs:Zeile 62.
   bei ILSpy.BamlDecompiler.XamlDecompiler.Decompile(IDecompilerTypeSystem typeSystem, BamlDocument document, CancellationToken token, BamlDecompilerOptions bamlDecompilerOptions, List`1 assemblyReferences) in E:\_code\_dev\ilspy\ILSpy.BamlDecompiler\XamlDecompiler.cs:Zeile 42.
   bei ILSpy.BamlDecompiler.BamlResourceEntryNode.LoadIntoDocument(PEFile module, IAssemblyResolver assemblyResolver, Stream stream, CancellationToken cancellationToken) in E:\_code\_dev\ilspy\ILSpy.BamlDecompiler\BamlResourceEntryNode.cs:Zeile 66.
   bei ILSpy.BamlDecompiler.BamlResourceEntryNode.LoadBaml(AvalonEditTextOutput output, CancellationToken cancellationToken) in E:\_code\_dev\ilspy\ILSpy.BamlDecompiler\BamlResourceEntryNode.cs:Zeile 56.
   bei ILSpy.BamlDecompiler.BamlResourceEntryNode.<>c__DisplayClass1_1.<View>b__2() in E:\_code\_dev\ilspy\ILSpy.BamlDecompiler\BamlResourceEntryNode.cs:Zeile 40.
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