What am I missing to upgrade asp.net mvc .net core 2.2.0 apps to .net core 2.2.1 - asp.net-core

Question

I have the latest version of visual studio, the sdk and runtimes for x64 and x86 version 2.2.1, but my asp.net mvc .net core applications will only recognize being 2.2.0. I can install 2.2.1 into .net core libraries.
What do I need to change to allow my web projects to be 2.2.1 instead of 2.2.0?
(It can't be done through nuget, it provides the statement: Implicitly refrenced by an SDK. To update the package, update the SDK to which it belongs
Since the project is referencing a library with 2.2.1, I see the error: Error NU1605 Detected package downgrade: Microsoft.AspNetCore.App from 2.2.1 to 2.2.0. Reference the package directly from the project to select a different version.)

Answer 1

According to Microsoft documentation packages Microsoft.AspNetCore.App and Microsoft.NETCore.App have special versioning semantics which is handled outside of NuGet.
Also note that specifying a version number on Microsoft.AspNetCore.App package does not guarantee that desired version will be chosen. In general, you should not explicitly specify Microsoft.AspNetCore.App version unless you have a good reason to do so (applies to .NET Core 2.1 and later).
You can read more about that here: Microsoft.AspNetCore.App metapackage
If you want to target specific SDK used in your project or solution, add global.json file to project folder (if you want to target only that specific project) or solution folder if you want to target all projects in the solution.
global.json example:
{
"sdk": {
"version": "2.2.103"
}
}