Blazor on Linux: Error Could not load file or assembly System.Runtime RSS

• • Reply
  pesho_h_k

  None

  0 Points

  2 Posts

  Blazor on Linux: Error Could not load file or assembly System.Runtime

  Jan 04, 2020 10:59 PM|pesho_h_k|LINK

  I am on OpenSUSE Tumbleweed and installed Blazor from this page:

  https://docs.microsoft.com/en-us/dotnet/core/install/ (Downloaded the specific tar.gz files from here: https://dotnet.microsoft.com/download/dotnet-core/3.0)

  And now when I run dotnet --version I get 3.0.101.

  So I added the Blazor template like this:

  dotnet new -i Microsoft.AspNetCore.Blazor.Templates::3.1.0-preview4.19579.2
  

  And tried to create a project like this:

  dotnet new blazorwasm -o BlazorDemo
  cd BlazorDemo
  dotnet run
  

  The project got created, however - upon running I get this error:

  /home/petar/.nuget/packages/microsoft.aspnetcore.blazor.build/3.1.0-preview4.19579.2/targets/Blazor.MonoRuntime.targets(151,5): error MSB4062: The "BlazorCreateRootDescriptorFile" task could not be loaded from the assembly /home/petar/.nuget/packages/microsoft.aspnetcore.blazor.build/3.1.0-preview4.19579.2/targets/../tools/netcoreapp/Microsoft.AspNetCore.Blazor.Build.Tasks.dll. Could not load file or assembly 'System.Runtime, Version=4.2.2.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified. [/home/petar/Blazor/BlazorDemo/BlazorDemo.csproj]
  /home/petar/.nuget/packages/microsoft.aspnetcore.blazor.build/3.1.0-preview4.19579.2/targets/Blazor.MonoRuntime.targets(151,5): error MSB4062:  Confirm that the <UsingTask> declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. [/home/petar/Blazor/BlazorDemo/BlazorDemo.csproj]
  
  The build failed. Fix the build errors and run again.
  

  Any idea what could the problem be?

• • Reply
  maherjendoub...

  Participant

  1968 Points

  1026 Posts

  MVP

  Re: Blazor on Linux: Error Could not load file or assembly System.Runtime

  Jan 05, 2020 12:39 PM|maherjendoubi|LINK

  Hi,

  Would you please share your csproj file?

  Best regards,

  Maher

  Twitter : @maherjend
  Blog : https://maherjendoubi.io
• • Reply
  pesho_h_k

  None

  0 Points

  2 Posts

  Re: Blazor on Linux: Error Could not load file or assembly System.Runtime

  Jan 05, 2020 01:49 PM|pesho_h_k|LINK

  maherjendoubi

  Hi,

  Would you please share your csproj file?

  Best regards,

  Maher

  Thanks, maherjendoubi, for taking a look into this.

  However, apparently I was using .NET 3.0. and was trying to run template for 3.1.

  So - I deleted the dotnet folder and installed again the correct version (3.1.) of .NET:

  1. From this tutorial - https://docs.microsoft.com/en-us/dotnet/core/install/sdk?pivots=os-linux
  2. Download page - https://docs.microsoft.com/en-us/dotnet/core/install/sdk?pivots=os-linux#all-net-core-downloads

  And now I'm able to run Blazor on an unsupported Linux distro :)