Upgrade bootstrap in VS 2019 ASP.NET web forms 4.7

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How can I update a project created in VS2019 for ASP.NET web forms using .Net Framework 4.7 to use bootstrap 4.

I am not using ASP.NET Core

What I have tried:

VS won't allow me to upgrade from 3.4.1.

Posted 1-Mar-21 6:15am

Member 10724617

Updated 1-Mar-21 8:40am

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raddevus · Answer 1 · 2021-03-01T08:40:00

In Visual Studio 2019.
Open your web forms project.
go to References (in solution explorer).
Right click references...
Select Manage Nuget Packages...
You will see something like the following:

https://i.stack.imgur.com/spx1Q.png[^]

It shows Bootstrap 3.4.1.
You will have to select version 4.5.3 of bootstrap on the right side you can select [Update] button.

If you try 4.6.1 it won't work.