aspnetcore: running error "The path must be absolute."

error on bare template

Describe the bug

ran the template in docker and got an error when running on windows everything is fine

To Reproduce

create .net core web application with docker (linux)

Exceptions (if any)

Exception thrown: 'System.ArgumentException' in Microsoft.Extensions.FileProviders.Physical.dll
An unhandled exception of type 'System.ArgumentException' occurred in Microsoft.Extensions.FileProviders.Physical.dll: 'The path must be absolute.'
Stack trace:
 >   at Microsoft.Extensions.FileProviders.PhysicalFileProvider..ctor(String root, ExclusionFilters filters)
 >   at Microsoft.Extensions.FileProviders.PhysicalFileProvider..ctor(String root)
 >   at Microsoft.AspNetCore.Hosting.StaticWebAssets.StaticWebAssetsLoader.<>c.<UseStaticWebAssetsCore>b__2_1(String contentRoot)
 >   at Microsoft.AspNetCore.Hosting.StaticWebAssets.ManifestStaticWebAssetFileProvider..ctor(StaticWebAssetManifest manifest, Func`2 fileProviderFactory)
 >   at Microsoft.AspNetCore.Hosting.StaticWebAssets.StaticWebAssetsLoader.UseStaticWebAssetsCore(IWebHostEnvironment environment, Stream manifest, Boolean isJson)
 >   at Microsoft.AspNetCore.Hosting.StaticWebAssets.StaticWebAssetsLoader.UseStaticWebAssets(IWebHostEnvironment environment, IConfiguration configuration)
 >   at Microsoft.AspNetCore.Hosting.BootstrapHostBuilder.RunConfigurationCallbacks()
 >   at Microsoft.AspNetCore.Builder.WebApplicationBuilder..ctor(Assembly callingAssembly, String[] args)
 >   at Microsoft.AspNetCore.Builder.WebApplication.CreateBuilder(String[] args)
 >   at <Program>$.<Main>$(String[] args) in C:\PROJECTS\Others\Uztelecom\Uztelecom.Web\Program.cs:line 2

Further technical details

ASP.NET Core 6 preview 7 ,
Include the output of dotnet --info

.NET SDK (reflecting any global.json):
 Version:   6.0.100-preview.7.21379.14
 Commit:    22d70b47bc

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.19043
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\6.0.100-preview.7.21379.14\

Host (useful for support):
  Version: 6.0.0-preview.7.21377.19
  Commit:  91ba01788d

.NET SDKs installed:
  6.0.100-preview.4.21255.9 [C:\Program Files\dotnet\sdk]
  6.0.100-preview.6.21355.2 [C:\Program Files\dotnet\sdk]
  6.0.100-preview.7.21379.14 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 6.0.0-preview.6.21355.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.0-preview.7.21378.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 6.0.0-preview.5.21301.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0-preview.6.21352.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0-preview.7.21377.19 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 6.0.0-preview.5.21301.4 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0-preview.6.21353.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0-preview.7.21378.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

visual studio 2022 preview 3

About this issue

Original URL
State: closed
Created 3 years ago
Reactions: 2
Comments: 24 (7 by maintainers)

Most upvoted comments

Hi, not sure if this is the right place to put this or if I should make a new issue. But I’m seeing this same issue with .NET 6 RC 2 when running a new application through Docker Compose.

Repro Steps:

In VS 2022, create a new Blazor Server application (include Docker Support with Linux)
In VS, add Docker Orchestration Support for Docker Compose
Run the Docker Compose project in Debug mode

I’m running Visual Studio 17.0.0 RC2 and .NET 6.0.0-rc.2.21480.5.

I assume it an issue in other project types too, but I only checked Blazor Server.

Here’s my output from dotnet --info:

.NET SDK (reflecting any global.json):
 Version:   6.0.100-rc.2.21505.57
 Commit:    ab39070116

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.22000
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\6.0.100-rc.2.21505.57\

Host (useful for support):
  Version: 6.0.0-rc.2.21480.5
  Commit:  6b11d64e7e

.NET SDKs installed:
  3.1.414 [C:\Program Files\dotnet\sdk]
  6.0.100-rc.2.21505.57 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 3.1.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.0-rc.2.21480.10 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 3.1.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.11 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.0-rc.2.21480.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.11 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.0-rc.2.21501.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

ProgrammerAL on Oct 21, 2021

For folks using docker-compose, there’s a separate docker-compose issue that we are fixing in VS. See https://github.com/dotnet/aspnetcore/issues/37876 for details on how to deal with it.

For other folks, if your issue is not about docker compose, please file a separate issue so that we can track the issue properly.

javiercn on Nov 8, 2021

I have the same problem testing directly on a linux host.

Host (useful for support): Version: 5.0.9 Commit: 208e377a53

.NET SDKs installed: No SDKs were found.

.NET runtimes installed: Microsoft.AspNetCore.App 5.0.9 [/home/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.NETCore.App 5.0.9 [/home/dotnet/shared/Microsoft.NETCore.App]

Unhandled exception. System.ArgumentException: The path must be absolute. (Parameter 'root')
   at Microsoft.Extensions.FileProviders.PhysicalFileProvider..ctor(String root, ExclusionFilters filters)
   at Microsoft.Extensions.FileProviders.PhysicalFileProvider..ctor(String root)
   at Microsoft.AspNetCore.Hosting.StaticWebAssets.StaticWebAssetsFileProvider..ctor(String pathPrefix, String contentRoot)
   at Microsoft.AspNetCore.Hosting.StaticWebAssets.StaticWebAssetsLoader.<>c.<UseStaticWebAssetsCore>b__2_0(ContentRootMapping cr)
   at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext()
   at System.Linq.Enumerable.OfTypeIterator[TResult](IEnumerable source)+MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Microsoft.AspNetCore.Hosting.StaticWebAssets.StaticWebAssetsLoader.UseStaticWebAssetsCore(IWebHostEnvironment environment, Stream manifest)
   at Microsoft.AspNetCore.Hosting.StaticWebAssets.StaticWebAssetsLoader.UseStaticWebAssets(IWebHostEnvironment environment, IConfiguration configuration)
   at Microsoft.AspNetCore.Hosting.WebHostBuilderExtensions.<>c.<UseStaticWebAssets>b__11_0(WebHostBuilderContext context, IConfigurationBuilder configBuilder)
   at Microsoft.AspNetCore.Hosting.GenericWebHostBuilder.<>c__DisplayClass9_0.<ConfigureAppConfiguration>b__0(HostBuilderContext context, IConfigurationBuilder builder)
   at Microsoft.Extensions.Hosting.HostBuilder.BuildAppConfiguration()
   at Microsoft.Extensions.Hosting.HostBuilder.Build()

UPDATE: Same on Ubuntu and Alpine

Ellested on Aug 31, 2021