Aspnetcore: " rzc generate exited with code 1" when updtating packages on VS2017 Blazor template

[RemiBou]

Title

When we try to update all the packages on the VS2017 preview template for Blazor we can't build our project.

Functional impact

Unable to create a new project with Blazor latest features as the template targets "Microsoft.AspNetCore.Blazor.Build" version 0.10

Minimal repro steps

1. Open VS201715.7.0 preview 4*
2. New project Asp.Net core => Blazor (asp.net core hosted)
3. Right click on solution => Manage package
4. Install all the updates
5. Build solution

Expected result

Build succeeded

Actual result

Build failed

Output shows

2>   at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor)
2>   at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)
2>   at System.Activator.CreateInstance(Type type, Boolean nonPublic)
2>   at System.Activator.CreateInstance(Type type)
2>   at Microsoft.AspNetCore.Razor.Language.AssemblyExtension.CreateInitializer()
2>   at Microsoft.AspNetCore.Razor.Language.RazorProjectEngine.LoadExtensions(RazorProjectEngineBuilder builder, IReadOnlyList`1 extensions)
2>   at Microsoft.AspNetCore.Razor.Language.RazorProjectEngine.Create(RazorConfiguration configuration, RazorProjectFileSystem fileSystem, Action`1 configure)
2>   at Microsoft.AspNetCore.Razor.Tools.GenerateCommand.ExecuteCore(RazorConfiguration configuration, String projectDirectory, String tagHelperManifest, List`1 sources, List`1 outputs, List`1 relativePaths)
2>   at Microsoft.AspNetCore.Razor.Tools.GenerateCommand.ExecuteCoreAsync()
2>   at Microsoft.AspNetCore.Razor.Tools.CommandBase.<ExecuteAsync>d__10.MoveNext()
2>C:\Users\remi\.nuget\packages\microsoft.aspnetcore.blazor.build\0.2.1\targets\RazorCompilation.targets(187,5): error : rzc generate exited with code 1.
2>Génération du projet "BlazorEmpty.Client.csproj" terminée -- ÉCHEC.
3>------ Début de la génération : Projet : BlazorEmpty.Server, Configuration : Debug Any CPU ------

"dotnet --info" output

Product Information:
 Version:            2.1.200-preview-007576
 Commit SHA-1 hash:  bd3372b5a3

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.16299
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\2.1.200-preview-007576\

Microsoft .NET Core Shared Framework Host

  Version  : 2.0.7
  Build    : 2d61d0b043915bc948ebf98836fefe9ba942be11

[danroth27]

Looks like your .NET Core SDK version is out of date. To work with Blazor 0.2.0 you need 2.1.300-preview2-008533 (see https://blazor.net/docs/get-started.html).

Also make sure you are pulling packages from nuget.org.

[rynowak]

Another note for anyone hitting this... This is a problem with the Razor tools that pops up when you try to use multiple versions of a Razor extension across the lifetime of the Razor build server.

This is a bug in 2.1.0-preview2 Razor and will be resolved in the RC. This case will correctly fall back to the slow path when it can't load the Blazor extension.

You can work around this problem by killing all dotnet processes, or killing the one executing rzc.dll

[RemiBou]

Indeed I resolved it by installing the good sdk and targeting an other version of razor tools

[dudeNumber4]

Encountering this using:

• VS2017 V 15.9.5
• Blazor 0.7
• SDK: .Net Core 3.0.0-preview-27122-01 (upgraded to this to overcome a runtime bug)

[cetindogu]

i use aspnetcore 3.0 preview AND
Hey!!! Because of ~ character in .cshtml file

when i dont use ~. it works

<a href="~/Images/gallery/1.jpg" title="Image from Unsplash" data-gallery=""><img src="~/Images/gallery/1s.jpg"></a>