Why did the InputBox method go, and why did MessageBox stay?

My A-Level programming project is unfortunately in vb.net.

I remembered that InputBox was a method, so I tried it. It came back as undeclared.

Eventually I found a forum where someone mentioned that if you import the Microsoft.VisualBasic namespace you can use it again, but apparently that's been removed aswell ('InputBox' is not a member of 'Microsoft.VisualBasic').

I'm lost as to why Microsoft decided to remove InputBox, but keep MessageBox seeing as though they're both as useful as each other - even for a language as old as VB.

To get round this, would I create a form dedicated to collecting user inputs? There must be an better way to get InputBox back, I just can't seem to find it.

Thank you.

Edit for replication of my error:

'create a normal forms app (I'm using .NET Core 3.0)
Public Class frmExample
   Private Sub frmExample_Load(sender as Object, e as EventArgs) Handles MyBase.Load
      Dim userInput as string
      userInput = Interaction.InputBox("Example") 'InputBox is not a member of Interaction
      userInput = Microsoft.VisualBasic.InputBox("Example") 'InputBox is not a member of Microsoft.VisualBasic
   End Sub
End Class

Solution

In .NET Core 3.0 InputBox is not a method. This works as expected, however, in .NET Core 5.0.

In order to fix this: Change your Target Framework in Project Properties to .NET Core 5.0.

Or alternatively do what @Jimi suggested which was to simply create an InputBox form yourself.