CodexBloom - Programming Q&A Platform

Unexpected FileNotFoundException when reading configuration file in .NET 6 app

👀 Views: 97 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-14
csharp dotnet json file-io

I'm wondering if anyone has experience with I'm stuck on something that should probably be simple. Can someone help me understand I'm working on a project and hit a roadblock. I'm stuck on something that should probably be simple... Hey everyone, I'm running into an issue that's driving me crazy. I'm working on a .NET 6 console application where I need to read a JSON configuration file located in the project's root folder. However, I'm working with a `FileNotFoundException` even though the file exists. I've verified the file path and ensured it is included in the project. Here's the code I'm using to load the file: ```csharp using System; using System.IO; using System.Text.Json; namespace ConfigReader { class Program { static void Main(string[] args) { string filePath = "appsettings.json"; try { var options = new JsonSerializerOptions { PropertyNameCaseInsensitive = true }; var config = JsonSerializer.Deserialize<Config>(File.ReadAllText(filePath), options); Console.WriteLine(config.SomeSetting); } catch (FileNotFoundException ex) { Console.WriteLine($"File not found: {ex.Message}"); } } } public class Config { public string SomeSetting { get; set; } } } ``` The `appsettings.json` file is set to 'Copy if newer' in the properties, so it should be copied to the output directory. When I run the application, I get the following behavior: ``` File not found: Could not find file 'C:\Path\To\Project\bin\Debug\net6.0\appsettings.json'. ``` I've tried running the application in both Debug and Release modes, and I've checked the file path multiple times. I've also tried specifying the full absolute path to the file, but the behavior continues. I'm not sure what I'm missing here. Any insights on how to properly reference a file like this in .NET 6? Is there a best practice for managing configuration files that I should follow? For context: I'm using Csharp on Windows. How would you solve this? This issue appeared after updating to Csharp latest. Could someone point me to the right documentation? Thanks in advance! Thanks, I really appreciate it! Thanks, I really appreciate it! The stack includes Csharp and several other technologies. Is there a better approach? I'm working on a CLI tool that needs to handle this. Any ideas what could be causing this? For reference, this is a production microservice. Is there a better approach?