Publish fails when blazor app uses BlazorWasmAntivirusProtection Nuget in the project

Sometimes blazor apps dlls are flagged as false positive and blocked by firewalls or antiviruses. There is already an issue 36978 tracking this.

Meanwhile there is an another great library BlazorWasmAntivirusProtection which is used to overcome this false flagging of blazor apps by antivirus or firewall.

When we use this BlazorWasmAntivirusProtection library and try to prerender, publish fails!!!.

Here is the repo - BlazorWasmAVPrerender to replicate the issue.

Error log:

BlazorWasmAVPrerender -> /home/runner/work/BlazorWasmAVPrerender/BlazorWasmAVPrerender/dist/BlazorWasmAVPrerender/
  Unhandled exception. System.Exception: Could not load the assembly "BlazorWasmAVPrerender" in search directories below.
  /home/runner/work/BlazorWasmAVPrerender/BlazorWasmAVPrerender/dist/BlazorWasmAVPrerender/wwwroot/_framework
  (pwd: /home/runner/work/BlazorWasmAVPrerender/BlazorWasmAVPrerender/BlazorWasmAVPrerender)
   ---> System.BadImageFormatException: Could not load file or assembly 'BlazorWasmAVPrerender, Culture=neutral, PublicKeyToken=null'. An attempt was made to load a program with an incorrect format.
  
  File name: 'BlazorWasmAVPrerender, Culture=neutral, PublicKeyToken=null' ---> System.BadImageFormatException: Bad IL format.
     at System.Runtime.Loader.AssemblyLoadContext.InternalLoad(ReadOnlySpan`1 arrAssembly, ReadOnlySpan`1 arrSymbols)
     at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(Stream assembly, Stream assemblySymbols)
     at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(Stream assembly)
     at Toolbelt.Blazor.WebAssembly.PrerenderServer.CustomAssemblyLoader.LoadAssemblyFrom(String assemblyDir, String assemblyName) in C:\Projects\My\Blazor\BlazorWasmPreRendering.Build\BlazorWasmPreRendering.Build\CustomAssemblyLoader.cs:line 36
     at Toolbelt.Blazor.WebAssembly.PrerenderServer.CustomAssemblyLoader.<>c__DisplayClass1_0.<.ctor>b__1(String dir) in C:\Projects\My\Blazor\BlazorWasmPreRendering.Build\BlazorWasmPreRendering.Build\CustomAssemblyLoader.cs:line 20
     at System.Linq.Enumerable.SelectListIterator`2.MoveNext()
     at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
     at System.Linq.Enumerable.TryGetFirst[TSource](IEnumerable`1 source, Boolean& found)
     at System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable`1 source)
     at Toolbelt.Blazor.WebAssembly.PrerenderServer.CustomAssemblyLoader.<.ctor>b__1_0(AssemblyLoadContext context, AssemblyName name) in C:\Projects\My\Blazor\BlazorWasmPreRendering.Build\BlazorWasmPreRendering.Build\CustomAssemblyLoader.cs:line 19
     at System.Runtime.Loader.AssemblyLoadContext.GetFirstResolvedAssemblyFromResolvingEvent(AssemblyName assemblyName)
     at System.Runtime.Loader.AssemblyLoadContext.ResolveUsingEvent(AssemblyName assemblyName)
     at System.Runtime.Loader.AssemblyLoadContext.ResolveUsingResolvingEvent(IntPtr gchManagedAssemblyLoadContext, AssemblyName assemblyName)
     at System.Reflection.RuntimeAssembly.InternalLoad(ObjectHandleOnStack assemblyName, ObjectHandleOnStack requestingAssembly, StackCrawlMarkHandle stackMark, Boolean throwOnFileNotFound, ObjectHandleOnStack assemblyLoadContext, ObjectHandleOnStack retAssembly)
     at System.Reflection.RuntimeAssembly.InternalLoad(AssemblyName assemblyName, RuntimeAssembly requestingAssembly, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, AssemblyLoadContext assemblyLoadContext)
     at System.Runtime.Loader.AssemblyLoadContext.LoadFromAssemblyName(AssemblyName assemblyName)
     at Toolbelt.Blazor.WebAssembly.PrerenderServer.CustomAssemblyLoader.LoadAssembly(String assemblyName) in C:\Projects\My\Blazor\BlazorWasmPreRendering.Build\BlazorWasmPreRendering.Build\CustomAssemblyLoader.cs:line 49
     --- End of inner exception stack trace ---
     at Toolbelt.Blazor.WebAssembly.PrerenderServer.CustomAssemblyLoader.LoadAssembly(String assemblyName) in C:\Projects\My\Blazor\BlazorWasmPreRendering.Build\BlazorWasmPreRendering.Build\CustomAssemblyLoader.cs:line [55](https://github.com/fingers10/BlazorWasmAVPrerender/actions/runs/3374441807/jobs/5600065526#step:7:56)
     at Toolbelt.Blazor.WebAssembly.PrerenderServer.Program.BuildPrerenderingOptions(CustomAssemblyLoader assemblyLoader, CommandLineOptions commandLineOptions) in C:\Projects\My\Blazor\BlazorWasmPreRendering.Build\BlazorWasmPreRendering.Build\Program.cs:line 103
     at Toolbelt.Blazor.WebAssembly.PrerenderServer.Program.Main(String[] args) in C:\Projects\My\Blazor\BlazorWasmPreRendering.Build\BlazorWasmPreRendering.Build\Program.cs:line 28
     at Toolbelt.Blazor.WebAssembly.PrerenderServer.Program.<Main>(String[] args)
  Aborted (core dumped)

BlazorWasmAvPrerender GitHub Actions Link to check additional details if needed

[jsakamoto]

@fingers10 Now the latest version of the “BlazorWasmPreRendering.​Build” has supported lazy loading assemblies! 🎉

• https://www.nuget.org/packages/BlazorWasmPreRendering.Build/2.0.0-preview.7#release-body-tab

Could you check it out? and, thank you for giving me the big challenge that is adding support for lazy loading assemblies!

[fingers10]

@jsakamoto Many thanks for your suggestions and guidance. This thread can be closed.