Gotchas .Net Core

.netcoregotchas

Taken from: https://elanderson.net/2018/03/refit-basics/

In order to use async Task Main a change is needed to the project file to set the LangVersion.
I just set it to latest, but I believe the minimum for this feature is 7.1.

```xml
<PropertyGroup>
  <OutputType>Exe</OutputType>
  <TargetFramework>netcoreapp2.0</TargetFramework>
  <LangVersion>latest</LangVersion>
</PropertyGroup>
```
If you are using VS Code and are using Console.ReadLine() like I am above then a change will be
needed for the launch.json file found in the .vscode directory. 
Look for the console property and set the value to either integratedTerminal or externalTerminal 
otherwise, the app will be connected to the debug console which will show the output of the application, but doesn’t allow for input.