Visual Studio 2019 应用程序需要 .NET 框架

Question

I've created a simple console app (to run on .NET framework).

Running the app I see the following message:

But I have this version installed as can seen in the drop down:

Anyone familiar with this?

Answer 1

As phuzi said. As phuzi said.

Configure the app.config file:

   <supportedRuntime version="v4.0" sku=".NETFramework, Version = v4.8.2"/>

Official Microsoft documentation: link .

Hope it helps you.

Answer 2

I was fortunate to experience this, some forums talking about changes in the registry but what worked was to comment out the supportedRuntime element in the configuration file of the application.

Supported runtime element

Theres an interesting post here: What happens when removing auto added supportedRuntime element