👀 Views: 81 💬 Answers: 1 📅 Created: 2025-06-12

visual-studio t4 code-generation C#

I'm experiencing an scenario in Visual Studio 2022 where my .tt (T4 template) files are not generating the expected output files after upgrading from Visual Studio 2019... Previously, the T4 templates worked seamlessly, but now they either throw errors or silently unexpected result. For example, when I try to run the T4 template, I receive the following behavior in the Output window: ``` behavior 1 The 'MyTemplate.tt' template behavior output: Unable to load the specified file: 'C:\path\to\MyTemplate.tt'. ``` I've checked the template's properties, and "Custom Tool" is set to "TextTemplatingFileGenerator" as expected. I've also tried clearing the .vs folder and rebuilding the solution, but the scenario continues. Here is a basic version of my T4 template: ```csharp <#@ template language="C#" #> <#@ output extension=".cs" #> <#@ assembly name="System.Core" #> <#@ import namespace="System.Linq" #> namespace GeneratedCode { public class MyGeneratedClass { public string Property { get; set; } } } ``` I also made sure that the .tt file is included in the project and has the correct build action. Additionally, I attempted to manually invoke the transformation by right-clicking on the .tt file and selecting "Run Custom Tool", but this results in the same behavior message. Any insights on what could be causing this question or how I could troubleshoot it further? This has become a important roadblock in my project, and I would appreciate any help! For context: I'm using C# on Windows. Has anyone else encountered this? For context: I'm using C# on CentOS. I'd be grateful for any help. This is my first time working with C# 3.10.