Unhandled Exception Error (probably my fault)

[PajamaSLAM]

First and foremost: Thank you for this project! I have been watching it for years and finally got my hands on a pristine DVP-CX777ES.

I am running Windows 11 arm64, with the dotnet dependencies fulfilled (hosting bundle, aspnet core, desktop runtime, and CLI runtime versions 8 and 9) as far as I am aware. When running 'dotnet PATH_TO_DiscChanger.NET.dll, I encounter the following error:

PS C:\Users\******> dotnet C:\Users\******\Downloads\DiscChanger.NET.1.7.1\DiscChanger.NET.dll
info: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[63]
      User profile is available. Using 'C:\Users\SQLTester\AppData\Local\ASP.NET\DataProtection-Keys' as key repository and Windows DPAPI to encrypt keys at rest.
Unhandled exception. System.ArgumentNullException: Value cannot be null. (Parameter 'path1')
   at System.ArgumentNullException.Throw(String paramName)
   at System.IO.Path.Combine(String path1, String path2)
   at DiscChanger.Models.DiscChangerService..ctor(IWebHostEnvironment environment, IHubContext`1 hubContext, IDataProtectionProvider provider, ILogger`1 logger) in H:\Hugo Lyppens\Documents\Dev\DiscChanger.NET\Models\DiscChangerService.cs:line 66
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodBaseInvoker.InvokeDirectByRefWithFewArgs(Object obj, Span`1 copyOfArgs, BindingFlags invokeAttr)
   at System.Reflection.MethodBaseInvoker.InvokeWithFewArgs(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitRootCache(ServiceCallSite callSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceProvider.CreateServiceAccessor(ServiceIdentifier serviceIdentifier)
   at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
   at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(ServiceIdentifier serviceIdentifier, ServiceProviderEngineScope serviceProviderEngineScope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetService[T](IServiceProvider provider)
   at DiscChanger.Startup.<>c.<ConfigureServices>b__4_0(IServiceProvider p) in H:\Hugo Lyppens\Documents\Dev\DiscChanger.NET\Startup.cs:line 34
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitRootCache(ServiceCallSite callSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitIEnumerable(IEnumerableCallSite enumerableCallSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitRootCache(ServiceCallSite callSite, RuntimeResolverContext context)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceProvider.CreateServiceAccessor(ServiceIdentifier serviceIdentifier)
   at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
   at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(ServiceIdentifier serviceIdentifier, ServiceProviderEngineScope serviceProviderEngineScope)
   at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
   at Microsoft.Extensions.Hosting.Internal.Host.StartAsync(CancellationToken cancellationToken)
   at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
   at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
   at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.Run(IHost host)
   at DiscChanger.Program.Main(String[] args) in H:\Hugo Lyppens\Documents\Dev\DiscChanger.NET\Program.cs:line 18

I fully expect this to be my fault, and plan to try my PL2303 and FTDI based RS232 USB adapters on my RasPi, but was hoping someone here could help me.

Again, huge thank you for this project and any help is appreciated. Thank you!

Edit: typos

[hugo-lyppens]

[hugo-lyppens]

I forgot to upload the binaries for Release 1.8.0, sorry!. This has been fixed now.
First you download Hosting Bundle 9.0.7 (works on arm64) from here
Then you extract DiscChanger.NET.1.8.0.zip somewhere
then you open a command window with cd set to the extracted directory and type:
dotnet DiscChanger.NET.dll
(so please do not run dotnet path_elsewhere\DiscChanger.NET.dll but use the cd command.
in the output you will see 'now listening on: '+localhost URL. Ctrl-click that URL and your web browser will open. Then you can add your changer.
I just tested this on a Galaxy Book4 Edge 16" with Snapdragon X Elite ARM CPU.

[hugo-lyppens]

Release v1.8.1 now available with the latest NuGet and client-side library updates. No code changes.