The type or namespace cannot be found even after adding the reference. Apr 14, 2025 · Error CS0246: The type or namespace name 'XXX' could not be found (are you missing a using directive or an assembly reference?) In essence, this error occurs when the C# compiler is unable to locate a specific type or namespace that you're attempting to use in your code. 14. com May 20, 2025 · To resolve this, you need to add the required assembly reference to your project. See full list on learn. In Visual Studio, you can do this by right-clicking on your project in the Solution Explorer, selecting "Add Reference," and choosing the missing assembly. This is the way to fix it! Dec 12, 2022 · Even when you have the library project in the same solution as your UI, you still have to make a reference to it in your UI. Despite this, the solution builds without any compile errors and projects run without any issues. Jul 10, 2024 · When only some of your team see "The type or namespace name 'Abc' could not be found", it can cause some confusion. Check to make sure that your project isn't set up to use the . . NET Framework 4 Client Profile. microsoft. Right click on the UI project, choose Add->Reference, go to the Solution tab in the reference manager window, and check the box for your library. 3), we started getting this error on all our Razor pages - “The type of namespace name ‘PageModel’ could not be found (are you missing a using directive or an assembly reference?)”. May 30, 2025 · After upgrading Visual Studio to the latest version (17. kkbxm rzxz gxrb wcqrra hpza dny snikhhmv juie glni adhh