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.NET runtime issues - application not starting up
Hello, We have a .NET based application built using the .NET framework 8.0. The application runtimeconfig.json file shows this: MyApp.runtimeconfig.json "tfm": "net8.0", "frameworks": [ { "name": "Microsoft.NETCore.App", "version": "8.0.0" }, { "name": "Microsoft.WindowsDesktop.App", "version": "8.0.0" } ], Please note that we have Published the application and verified that only .NET version 8.0.16 components, DLLs etc are required. Anything higher than this does not show up. From the cmd prompt, the following runtimes are shown to be installed on the system: >dotnet --list-runtimes Microsoft.AspNetCore.App 8.0.21 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.NETCore.App 8.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.WindowsDesktop.App 8.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App] However, when we try to start a Windows service which is installed as part of the application, it does not start up, and the Windows Event Viewer shows the following error: "Description: A .NET application failed. Application: MyAppControllerService.exe Path: C:\MyApp\MyAppControllerService.exe Message: You must install or update .NET to run this application. App: C:\MyApp\MyAppControllerService.exe Architecture: x64 Framework: 'Microsoft.NETCore.App', version '8.0.21' (x64) .NET location: C:\Program Files\dotnet\ The following frameworks were found: 8.0.20 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Learn more: https://aka.ms/dotnet/app-launch-failed To install missing framework, download: https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=8.0.21&arch=x64&rid=win-x64&os=win10" So, the issue is, even with Microsoft.WindowsDesktop.App 8.0.20 being installed on the system, it still asks for the .NET 8.0 Runtime (v8.0.21) to be installed. Please let me know why this is so? Since, as per this: https://learn.microsoft.com/en-us/dotnet/core/install/windows .NET Desktop Runtime includes the .NET runtime as well, and Microsoft.WindowsDesktop.App 8.0.20 is installed. Thanks in advance, JY
How to respond to upgrade-assistant cli prompts?
Bear with me please, I have not touched this stuff in a few years. Trying to upgrade Xamarin project to .Net Maui using CLI (latest version of VS 2022 cannot find the Upgrade assistant extension). I have downloaded the upgrade-assistant, but am not familiar with how to reply\how to make a selection of what is displayed after I enter "upgrade-assistant upgrade project-name" (it does not execute and instead displays information...see attached image). Is what is being display telling me that I need to ctrl-c out of this and re-enter the command using what they are showing? Please give me an example of using the Side-by-side upgrade. Is is also telling me that I need to do something with NuGet also on the command line? Thanks.
dotnet on linux - Signing key on ... is not bound
dotnet on linux gpg key not working.... Warning: https://packages.microsoft.com/ubuntu/25.04/prod/dists/plucky/InRelease: Policy will reject signature wi thin a year, see --audit for details Controle: https://packages.microsoft.com/ubuntu/25.04/prod/dists/plucky/InRelease: Sub-process /usr/bin/sqv returned a n error code (1), error message is: Signing key on BC528686B50D79E339D3721CEB3E94ADBE1229CF is not bound: No binding signature at time 2025-09-12T15:59:00Z because: Policy rejected non-revocation signature (PositiveCertification) requiring second pre-image resistance because: SHA1 is not considered secure since 2026-02-01T00:00:00ZBest Way to Fill ACORD 23 Vehicle Insurance Certificates on Windows – Any Recommended Tools?
I frequently deal with insurance documentation and recently had to work with the ACORD 23 Vehicle Insurance Certificate. I’ve been using Windows 11 and was looking for the most efficient way to fill, edit, and save these forms digitally without printing them out. While browsing, I found AcordForm – it lets you view and understand various ACORD forms like the 23, 25, and more. It’s been helpful for referencing and understanding the format. However, I’d love some advice from the community: What’s the best Microsoft-supported tool for filling out ACORD PDF forms? Is Microsoft Edge’s PDF editor reliable enough, or should I be using Microsoft Word with PDF add-ins? Any integration tips with OneDrive or SharePoint for document storage?. Thanks in advance
AacAmbientLighting.exe Issue
Hi, I'm not sure if this is an appropriate place to post this, please do let me know if not. I have for the last two days been getting the following message popping up on my machine and I can't work out for what reason. I updated my Internet Security during that time, so automatic thought was it was that preventing the files been read, but I've disabled the Internet Security and the error message still crops up I have also uninstalled and reinstalled Armoury Crate, uninstalling it does take the error away, but that causes other issues and I use ROG hardware. So I kind of need Armoury Crate to be functioning. This is the error that I'm seeing: When I try and install the .Net Runtime software it says that 'the specified account already exists' so I'm a littled confused as to what might be causing the issue and how I can resolve it and keep Armoury Crate on my machine.
.Net 8 Isolated upgrade issue- RPC Exceptions in .Net Core Function App
Hi Team, Need Immediate help. I am continuously receiving RPC Exceptions when I have upgraded my Function App to .Net 8 previously I had zero exceptions related to this in .Net 6. Scenario: We are creating builder with ConfigureFunctionsWebApplication() like below: 1. var builder = FunctionsApplication.CreateBuilder(args); 2. builder.ConfigureFunctionsWebApplication(); And basically, we have Http triggers and SB triggers in the application and only couple of them are facing issue and the error in AI states that this is an issue related to worker. I have copied multiple exception wrapped as an RPC exception below: 1. An exception was thrown by the invocation. Exception: System.TimeoutException: Timed out waiting for the function start call. 2. The operation has timed out at Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore.DefaultHttpCoordinator.SetFunctionContextAsync(String invocationId, FunctionContext context) 3.Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore.DefaultHttpCoordinator.SetFunctionContextAsync(String invocationId, FunctionContext context) 4. Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore.FunctionsHttpProxyingMiddleware.Invoke(FunctionContext context, FunctionExecutionDelegate next) in D:\a\_work\1\s\extensions\Worker.Extensions.Http.AspNetCore\src\FunctionsMiddleware\FunctionsHttpProxyingMiddleware.cs:line 45 at Microsoft.Azure.Functions.Worker.FunctionsApplication.InvokeFunctionAsync(FunctionContext context) in D:\a\_work\1\s\src\DotNetWorker.Core\FunctionsApplication.cs:line 96 Stack: at Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore.DefaultHttpCoordinator.SetFunctionContextAsync(String invocationId, FunctionContext context) in D:\a\_work\1\s\extensions\Worker.Extensions.Http.AspNetCore\src\Coordinator\DefaultHttpCoordinator.cs:line 66 5. Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore.FunctionsHttpProxyingMiddleware.Invoke(FunctionContext context, FunctionExecutionDelegate next) in D:\a\_work\1\s\extensions\Worker.Extensions.Http.AspNetCore\src\FunctionsMiddleware\FunctionsHttpProxyingMiddleware.cs:line 45 at Microsoft.Azure.Functions.Worker.FunctionsApplication.InvokeFunctionAsync(FunctionContext context) in D:\a\_work\1\s\src\DotNetWorker.Core\FunctionsApplication.cs:line 96🚀 Kickstart Your .NET Journey with Microsoft Learn!
Hey .NET enthusiasts! Are you new to .NET or looking to refresh your skills? Microsoft Learn has an Introduction to .NET module that walks you through the fundamentals of .NET, .NET Core, and the .NET Framework. This is a free, hands-on learning experience designed to get you started quickly. What you'll learn: The basics of .NET and why it's powerful How .NET supports multiple platforms Running your first .NET application Start learning here: https://learn.microsoft.com/training/modules/dotnet-introduction/?wt.mc_id=studentamb_444266 Have you used .NET in your projects? Share your experiences and let’s discuss below!Get certificate's public key in the PKCS8 format
Environment: Windows 11 24H2 .Net Framework 4.8, 4.7.2 Problem: I do not understand how to get server's certificate public key in PKCS8 format using the X509Certificate class. Explanation: I'm implementing the custom server's certificate check for SSL connection (aka certificate pinning) in the next way: Create a new SSLStream: SslStream sslStream = new SslStream( client.GetStream(), false, new RemoteCertificateValidationCallback(ValidateServerCertificate), null); Declare the ValidateServerCertificate() method: public static bool ValidateServerCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) {} Get server's certificate public key certificate.GetPublicKey() The public key which I get is in the PKCS1 format and I can't find any function in .Net Framework to get it in the PKCS8 format or to convert from PCKS1 to PKCS8. As a fallback, I'm using the static prefix for the PKCS8 format which works well but is valid only for 2048 bits long public keys: private static byte[] pkcs8Prefix = { 0x30, 0x82, 0x01, 0x22, 0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0F, 0x00 }; byte[] pkcs8PublicKey = pkcs8Prefix.Concat(certificate.GetPublicKey()).ToArray(); Which function of .Net Framework can I use to get the public key in the PKCS8 format?
