Sample app not updating after code change and browser refresh? Build hangs Blazor

Question

Real excited to learn about Blazor. Lots of potential here with this framework!

VS 2017 build 15.8.9 and VS extension for Blazor v 15.5.9 Ok, so I'm going through the demo app (todo) after starting a new project using the asp.net core (hosted) template.

The first problem I'm running into is code changes not being reflected in the browser (edge, Firefox and Chrome). However, if I stop the app (via visual studio) and try to start again, a build starts but just seems to go on and on.
If I stop the site via iis express in the system tray, stop the build, then re-launch, it builds fine and runs with the expected results of the code change reflected in the browser.

What can I check?

Does the same thing when dropping down to command line and using dotnet run from the blazor_do.server folder

Answer 1

dotnet run will not work, you need to use dotnet watch run

See also: https://github.com/aspnet/Blazor/issues/1428

And this: https://github.com/aspnet/Blazor/issues/1704

For more tips on getting it to work

EDIT: Also make sure your are running the correct versions from: https://blazor.net/docs/get-started.html

Most important:

• .NET Core 2.1 SDK (2.1.500 or later).
• Visual Studio 2017 (15.9 or later)