PortableExecutableReaderExtensions.GetDebugInformation System.NullReferenceException

Hi,

I am using a .Net 6.0 web app in debug mode on my localhost. We are using Mindscape.Raygun4Net.AspNetCore 11.1.0. This also occurred on the previous version we had installed 11.0.3. Prior to that, we were using 10.1.1, and I do not get the exception with that package

Here is the stack trace:

>   Mindscape.Raygun4Net.NetCore.Common.dll!Mindscape.Raygun4Net.Diagnostics.PortableExecutableReaderExtensions.GetDebugInformation(System.Reflection.PortableExecutable.PEReader peReader) Line 39 C#
    Mindscape.Raygun4Net.NetCore.Common.dll!Mindscape.Raygun4Net.Diagnostics.PortableExecutableReaderExtensions.TryGetDebugInformation(System.Reflection.PortableExecutable.PEReader peReader, out Mindscape.Raygun4Net.Diagnostics.PEDebugInformation debugInformation) Line 27    C#
    Mindscape.Raygun4Net.NetCore.Common.dll!Mindscape.Raygun4Net.RaygunErrorMessageBuilder.TryGetDebugInformation(string moduleName) Line 216   C#
    Mindscape.Raygun4Net.NetCore.Common.dll!Mindscape.Raygun4Net.RaygunErrorMessageBuilder.BuildStackTrace(System.Diagnostics.StackTrace stackTrace) Line 80    C#
    Mindscape.Raygun4Net.NetCore.Common.dll!Mindscape.Raygun4Net.RaygunErrorMessageBuilder.Build(System.Exception exception) Line 155   C#
    Mindscape.Raygun4Net.NetCore.Common.dll!Mindscape.Raygun4Net.RaygunMessageBuilder.SetExceptionDetails(System.Exception exception) Line 55   C#
    Mindscape.Raygun4Net.NetCore.Common.dll!Mindscape.Raygun4Net.RaygunClientBase.BuildMessage(System.Exception exception, System.Collections.Generic.IList<string> tags, System.Collections.IDictionary userCustomData, Mindscape.Raygun4Net.RaygunIdentifierMessage userInfo, System.Action<Mindscape.Raygun4Net.RaygunMessage> customiseMessage) Line 313    C#
    Mindscape.Raygun4Net.AspNetCore.dll!Mindscape.Raygun4Net.AspNetCore.RaygunClient.SendInBackground(System.Exception exception, System.Collections.Generic.IList<string> tags, Microsoft.AspNetCore.Http.HttpContext context) Line 95 C#
    Mindscape.Raygun4Net.AspNetCore.dll!Mindscape.Raygun4Net.AspNetCore.RaygunMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext httpContext) Line 57  C#
    Microsoft.AspNetCore.CookiePolicy.dll!Microsoft.AspNetCore.CookiePolicy.CookiePolicyMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context)    Unknown
    Microsoft.AspNetCore.Routing.dll!Microsoft.AspNetCore.Routing.EndpointRoutingMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext httpContext)   Unknown
    Microsoft.AspNetCore.StaticFiles.dll!Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context)    Unknown
    Microsoft.AspNetCore.HttpsPolicy.dll!Microsoft.AspNetCore.HttpsPolicy.HttpsRedirectionMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context)  Unknown
    Microsoft.AspNetCore.Diagnostics.dll!Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context)    Unknown
    Microsoft.AspNetCore.HostFiltering.dll!Microsoft.AspNetCore.HostFiltering.HostFilteringMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context) Unknown
    Microsoft.WebTools.BrowserLink.Net.dll!Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.InvokeAsync(Microsoft.AspNetCore.Http.HttpContext context)  Unknown
    [Resuming Async Method] 
    System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state)   Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Threading.Tasks.VoidTaskResult>.AsyncStateMachineBox<Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.<InvokeAsync>d__6>.MoveNext(System.Threading.Thread threadPoolThread)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncMethodBuilderCore.ContinuationWrapper.Invoke()  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining)   Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject)  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.FinishContinuations()    Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task<System.__Canon>.TrySetResult(System.__Canon result)  Unknown
    Microsoft.WebTools.BrowserLink.Net.dll!Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.GetScriptTag(string requestId, bool isHttps, string hostUrl)    Unknown
    [Resuming Async Method] 
    System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state)   Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<string>.AsyncStateMachineBox<Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.<GetScriptTag>d__7>.MoveNext(System.Threading.Thread threadPoolThread)  Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncMethodBuilderCore.ContinuationWrapper.Invoke()  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining)   Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject)  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.FinishContinuations()    Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task<System.__Canon>.TrySetResult(System.__Canon result)  Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.SetExistingTaskResult(System.Threading.Tasks.Task<System.__Canon> task, System.__Canon result)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.SetResult(System.Net.Http.HttpResponseMessage result)    Unknown
    [Completed] System.Net.Http.dll!System.Net.Http.HttpClient.SendAsync.__Core|83_0(System.Net.Http.HttpRequestMessage request, System.Net.Http.HttpCompletionOption completionOption, System.Threading.CancellationTokenSource cts, bool disposeCts, System.Threading.CancellationTokenSource pendingRequestsCts, System.Threading.CancellationToken originalCancellationToken)   Unknown
    System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state)   Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.AsyncStateMachineBox<System.Net.Http.HttpClient.<<SendAsync>g__Core|83_0>d>.MoveNext(System.Threading.Thread threadPoolThread)   Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncMethodBuilderCore.ContinuationWrapper.Invoke()  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining)   Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject)  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.FinishContinuations()    Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task<System.__Canon>.TrySetResult(System.__Canon result)  Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.SetExistingTaskResult(System.Threading.Tasks.Task<System.__Canon> task, System.__Canon result)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncValueTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.SetResult(System.Net.Http.HttpResponseMessage result)   Unknown
    [Completed] System.Net.Http.dll!System.Net.Http.RedirectHandler.SendAsync(System.Net.Http.HttpRequestMessage request, bool async, System.Threading.CancellationToken cancellationToken) Unknown
    System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state)   Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.AsyncStateMachineBox<System.Net.Http.RedirectHandler.<SendAsync>d__4>.MoveNext(System.Threading.Thread threadPoolThread) Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncMethodBuilderCore.ContinuationWrapper.Invoke()  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining)   Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject)  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.FinishContinuations()    Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task<System.__Canon>.TrySetResult(System.__Canon result)  Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.SetExistingTaskResult(System.Threading.Tasks.Task<System.__Canon> task, System.__Canon result)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncValueTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.SetResult(System.Net.Http.HttpResponseMessage result)   Unknown
    [Completed] System.Net.Http.dll!System.Net.Http.DiagnosticsHandler.SendAsyncCore(System.Net.Http.HttpRequestMessage request, bool async, System.Threading.CancellationToken cancellationToken)  Unknown
    System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state)   Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.AsyncStateMachineBox<System.Net.Http.DiagnosticsHandler.<SendAsyncCore>d__8>.MoveNext(System.Threading.Thread threadPoolThread)  Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncMethodBuilderCore.ContinuationWrapper.Invoke()  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining)   Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject)  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.FinishContinuations()    Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task<System.__Canon>.TrySetResult(System.__Canon result)  Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.SetExistingTaskResult(System.Threading.Tasks.Task<System.__Canon> task, System.__Canon result)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncValueTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.SetResult(System.Net.Http.HttpResponseMessage result)   Unknown
    [Completed] System.Net.Http.dll!System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(System.Net.Http.HttpRequestMessage request, bool async, bool doRequestAuth, System.Threading.CancellationToken cancellationToken)  Unknown
    System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state)   Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.AsyncStateMachineBox<System.Net.Http.HttpConnectionPool.<SendWithVersionDetectionAndRetryAsync>d__84>.MoveNext(System.Threading.Thread threadPoolThread) Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncMethodBuilderCore.ContinuationWrapper.Invoke()  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining)   Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject)  Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task.FinishContinuations()    Unknown
    System.Private.CoreLib.dll!System.Threading.Tasks.Task<System.__Canon>.TrySetResult(System.__Canon result)  Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.SetExistingTaskResult(System.Threading.Tasks.Task<System.__Canon> task, System.__Canon result)    Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.SetResult(System.Net.Http.HttpResponseMessage result)    Unknown
    [Completed] System.Net.Http.dll!System.Net.Http.HttpConnection.SendAsyncCore(System.Net.Http.HttpRequestMessage request, bool async, System.Threading.CancellationToken cancellationToken)  Unknown
    System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state)   Unknown
    System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.AsyncStateMachineBox<System.Net.Http.HttpConnection.<SendAsyncCore>d__64>.MoveNext(System.Threading.Thread threadPoolThread) Unknown
    System.Private.CoreLib.dll!System.Threading.ThreadPool..cctor.AnonymousMethod__87_0(object state)   Unknown
    System.Net.Sockets.dll!System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.InvokeContinuation(System.Action<object> continuation, object state, bool forceAsync, bool requiresExecutionContextFlow) Unknown
    System.Net.Sockets.dll!System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.OnCompleted(System.Net.Sockets.SocketAsyncEventArgs _)   Unknown
    System.Net.Sockets.dll!System.Net.Sockets.SocketAsyncEventArgs.OnCompletedInternal()    Unknown
    System.Net.Sockets.dll!System.Net.Sockets.SocketAsyncEventArgs..cctor.AnonymousMethod__179_0(uint errorCode, uint numBytes, System.Threading.NativeOverlapped* nativeOverlapped)    Unknown
    System.Private.CoreLib.dll!System.Threading.ThreadPoolBoundHandleOverlapped.CompletionCallback(uint errorCode, uint numBytes, System.Threading.NativeOverlapped* nativeOverlapped)  Unknown
    System.Private.CoreLib.dll!System.Threading._IOCompletionCallback.PerformIOCompletionCallback(uint errorCode, uint numBytes, System.Threading.NativeOverlapped* pNativeOverlapped)  Unknown
    [Async Call Stack]  
    [Async] Microsoft.AspNetCore.Watch.BrowserRefresh.dll!Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware.InvokeAsync(Microsoft.AspNetCore.Http.HttpContext context) Unknown
    [Async] Microsoft.AspNetCore.Server.Kestrel.Core.dll!Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests<Microsoft.AspNetCore.Hosting.HostingApplication.Context>(Microsoft.AspNetCore.Hosting.Server.IHttpApplication<Microsoft.AspNetCore.Hosting.HostingApplication.Context> application)    Unknown
    [Async] Microsoft.AspNetCore.Server.Kestrel.Core.dll!Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequestsAsync<Microsoft.AspNetCore.Hosting.HostingApplication.Context>(Microsoft.AspNetCore.Hosting.Server.IHttpApplication<Microsoft.AspNetCore.Hosting.HostingApplication.Context> application)   Unknown

Hi,

Thanks for looking into this. Yes, it is asp.net core site on .NET 6. It does produce pdb files.

Not sure what else would be helpful. Here is a partial copy of our program.cs:

    internal class Program
{
    private static void Main(string[] args)
    {
        var builder = WebApplication.CreateBuilder(args);

        // Add services to the container.
        builder.Services.AddControllersWithViews();
        builder.Services.AddMvc();

        // Setup Raygun
        builder.Services.AddRaygun(builder.Configuration);

        // Setup for SAML
        builder.Services.AddHttpClient();

        // NLog: Setup NLog for Dependency injection
        var logger = LogManager.Setup().LoadConfigurationFromAppSettings().GetCurrentClassLogger();
        builder.Logging.ClearProviders();
        builder.Logging.SetMinimumLevel(Microsoft.Extensions.Logging.LogLevel.Trace);
        builder.Host.UseNLog();

        // add authorization and authenticatio
// ...

            // Add Db Context
// ...

            // Other app services
            // ...

            var app = builder.Build();

            // Configure the HTTP request pipeline.
            if (!app.Environment.IsDevelopment())
            {
                app.UseExceptionHandler("/Home/Error");

                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseStaticFiles();

            app.UseRouting();
            app.UseCookiePolicy();
            app.UseRaygun();
            app.UseAuthentication();
            app.UseAuthorization();
            app.MapRazorPages();
            app.MapDefaultControllerRoute();

            app.MapControllerRoute(
                name: "default",
                pattern: "{controller=Home}/{action=Index}/{id?}");

            app.Run();
        }
        catch (Exception exception)
        {
            // NLog: catch setup errors
            logger.Error(exception, "Stopped program because of exception");
            throw new Exception(exception.Message);
        }
        finally
        {
            LogManager.Shutdown();
        }
    }
}

Hi Phill,

I attached my Exception Settings.

The "GetDebugInformation" method that is erroring is not wrapped in a try...catch for me:

private static PEDebugInformation GetDebugInformation(this PEReader peReader)
{
    PEDebugInformation debugInfo = new PEDebugInformation
    {
        Timestamp = $"{peReader.PEHeaders.CoffHeader.TimeDateStamp:X8}"
    };
    ImmutableArray<DebugDirectoryEntry>.Enumerator enumerator = peReader.ReadDebugDirectory().GetEnumerator();
    while (enumerator.MoveNext())
    {
        DebugDirectoryEntry entry = enumerator.Current;
        if (entry.Type == DebugDirectoryEntryType.CodeView)
        {
            CodeViewDebugDirectoryData codeViewData = peReader.ReadCodeViewDebugDirectoryData(entry);
            debugInfo.File = codeViewData.Path;
            debugInfo.Signature = codeViewData.Guid.ToString();
        }
        if (entry.Type == DebugDirectoryEntryType.PdbChecksum)
        {
            PdbChecksumDebugDirectoryData checksumEntry = peReader.ReadPdbChecksumDebugDirectoryData(entry);
            string checksumHex = BitConverter.ToString(checksumEntry.Checksum.ToArray()).Replace("-", "").ToUpperInvariant();
            debugInfo.Checksum = checksumEntry.AlgorithmName + ":" + checksumHex;
        }
    }
    return debugInfo;
}

Hi Phil,

Sorry for the delay. Yes, the error happens when debugging the app! And System.NullReferenceException is checked. The error only occurs locally, not in test/prod; so, that would explain it.

Nonetheless, I'm attaching a project that reproduces the issue.

Hi Jasen,

Awesome! Thanks so much.

Take care,

Jen