.NET 6 Preview 5 #6389

rbhanda · 2021-06-17T18:23:47Z

Please report any issues you find with .NET 6, either responding to this issue, creating a new issue or creating a new issue in one of the following repos:

dotnet/aspnetcore - for ASP.NET Core questions
dotnet/efcore - for Entity Framework Core questions
dotnet/sdk - for CLI tools and questions
dotnet/runtime - for runtime, API, or installer issues and questions
dotnet/winforms - for WinForms issues
dotnet/wpf - for WPF issues
nuget/home - for NuGet questions and issues

Known Issues

If there are any issues with this release we will track them here and check issues off as they're resolved. See the linked issues for details on progress and resolution details.

WebApplicationBuilder.WebHost.UseWebRoot(string) throws given a relative path WebApplicationBuilder.WebHost.UseWebRoot(string) throws given a relative path aspnetcore#33795

rusuly · 2021-06-18T09:41:14Z

Hi, I'm blocked by the JWT Handler issue which occurs after migrating from preview 4 to preview 5

vahpetr · 2021-06-18T12:07:01Z

Hi. After migration from preview 4 to preview 5 builder.WebHost.UseWebRoot("wwwroot") break application.
Unhandled exception. System.ArgumentException: The path must be absolute. (Parameter 'root')

hugocorreia90 · 2021-06-19T19:42:36Z

Hi, I'm getting this error "error NU1102: Unable to find package System.ComponentModel.Annotations with version (>= 6.0.0-preview.5.21217.1) - Found 57 version(s) in nuget.org [ Nearest version: 6.0.0-preview.4.21253.7 ]" after upgrading from preview 4 to 5.

gdar91 · 2021-06-20T10:39:34Z

Web API server fails to start when you have more than 3 hosted services registered. Error message: System.InvalidOperationException: Server has already started.

Steps to reproduce:

Create an empty solution.
Create a new Web API project inside the solution directory.
Create at least 4 background services (or create a generic one and add it at least four times.)
From the command prompt, go to the project directory and launch it from there (don't launch it from the root with a --project flag)
The error will pop up

It will work if you launch it from the solution root and specify a --project flag. But it won't serve any Blazor content. And this can be counted as another issue I guess.

mairaw · 2021-06-21T21:37:39Z

Adding @danroth27 and @LadyNaggaga to see if these issues are already being tracked

danroth27 · 2021-06-21T22:55:52Z

Hi, I'm getting this error "error NU1102: Unable to find package System.ComponentModel.Annotations with version (>= 6.0.0-preview.5.21217.1) - Found 57 version(s) in nuget.org [ Nearest version: 6.0.0-preview.4.21253.7 ]" after upgrading from preview 4 to 5.

@hmsca See dotnet/announcements#190. System.ComponentModel.Annotations is now part of the shared framework in .NET 6, so you should remove the package reference.

danroth27 · 2021-06-21T22:58:02Z

Hi. After migration from preview 4 to preview 5 builder.WebHost.UseWebRoot("wwwroot") break application.
Unhandled exception. System.ArgumentException: The path must be absolute. (Parameter 'root')

@BrennanConroy @shirhatti Was this an intentional change in behavior?

BrennanConroy · 2021-06-21T23:07:09Z

@halter73 This looks like they're using ConfigureWebHostBuilder, anyone known issues/changes from preview4 to preview5 around this area?

vahpetr · 2021-06-22T16:30:51Z

Hi again. After migration from preview 4 to preview 5 .PersistKeysToDbContext<DataProtectionDbContext>(); not work.
Npgsql.PostgresException (0x80004005): 23502: null value in column "Id" of relation "DataProtectionKeys" violates not-null constraint

halter73 · 2021-06-23T21:21:34Z

Thanks for the report @hmsca! This is being tracked by dotnet/aspnetcore#33795.

For anyone wanting a workaround, you could do something like the following to get an absolute path:

var absolutePath = Path.Combine(builder.Environment.ContentRootPath, "www");
builder.WebHost.UseWebRoot(absolutePath);

smj0x · 2021-06-24T09:04:23Z

.NET 6 Preview 5, Blazor Webassembly has issue's with some of the Chrome Client and Firefox which results in halting the total functionality of the web app, Here is the Console Print

dotnet.6.0.0-preview.5.21301.5.js:1 Uncaught (in promise) Error: Microsoft.JSInterop.JSException: Could not find 'Blazor._internal.endInvokeDotNetFromJS' ('endInvokeDotNetFromJS' was undefined).
Error: Could not find 'Blazor._internal.endInvokeDotNetFromJS' ('endInvokeDotNetFromJS' was undefined).
    at blazor.webassembly.js:1
    at Array.forEach (<anonymous>)
    at n.findFunction (blazor.webassembly.js:1)
    at Object.b [as findJSFunction] (blazor.webassembly.js:1)
    at Object.ct [as invokeJSFromDotNet] (blazor.webassembly.js:1)
    at _mono_wasm_invoke_js_blazor (dotnet.6.0.0-preview.5.21301.5.js:1)
    at dotnet.wasm:0x1930bb
    at dotnet.wasm:0x5972b
    at dotnet.wasm:0x4541e
    at dotnet.wasm:0x12d0c6
   at Microsoft.JSInterop.WebAssembly.WebAssemblyJSRuntime.InvokeUnmarshalled[String,Boolean,String,Object](String , String , Boolean , String , Int64 )
   at Microsoft.JSInterop.WebAssembly.WebAssemblyJSRuntime.InvokeUnmarshalled[String,Boolean,String,Object](String , String , Boolean , String )
  at Microsoft.JSInterop.WebAssembly.WebAssemblyJSRuntime.EndInvokeDotNet(DotNetInvocationInfo , DotNetInvocationResult& )
   at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.BeginInvokeDotNet(JSRuntime , DotNetInvocationInfo , String )
   at Microsoft.AspNetCore.Components.WebAssembly.Services.DefaultWebAssemblyJSRuntime.<>c.<BeginInvokeDotNet>b__8_0(ValueTuple`2 )
   at Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyCallQueue.Schedule[ValueTuple`2](ValueTuple`2 , Action`1 )
   at Microsoft.AspNetCore.Components.WebAssembly.Services.DefaultWebAssemblyJSRuntime.BeginInvokeDotNet(String , String , String , String )
    at Object._convert_exception_for_method_call (dotnet.6.0.0-preview.5.21301.5.js:1)
    at Object._handle_exception_for_call (dotnet.6.0.0-preview.5.21301.5.js:1)
    at managed__Microsoft_AspNetCore_Components_WebAssembly__Microsoft_AspNetCore_Components_WebAssembly_Services_DefaultWebAssemblyJSRuntime_BeginInvokeDotNet (managed__Microsoft_AspNetCore_Components_WebAssembly__Microsoft_AspNetCore_Components_WebAssembly_Services_DefaultWebAssemblyJSRuntime_BeginInvokeDotNet:20)
    at Object.beginInvokeDotNetFromJS (blazor.webassembly.js:1)
    at h (blazor.webassembly.js:1)
    at Object.e.invokeMethodAsync (blazor.webassembly.js:1)
    at blazor.webassembly.js:1
    at ie (blazor.webassembly.js:1)
    at ae (blazor.webassembly.js:1)
    at blazor.webassembly.js:1

WeihanLi · 2021-06-24T14:51:14Z

When I upgrade .NET 6 preview 4 to preview 5, I'm using a new JsonNode API introduced in preview 4(JsonNode.Parse(responseStr)), I got an error like follows:

Error CS0234: The type or namespace name 'Node' does not exist in the namespace 'System.Text.Json' (are you missing an assembly reference?)

You can find my sample code here if needed

hugocorreia90 · 2021-06-24T14:52:24Z

Hi, I'm getting this error "error NU1102: Unable to find package System.ComponentModel.Annotations with version (>= 6.0.0-preview.5.21217.1) - Found 57 version(s) in nuget.org [ Nearest version: 6.0.0-preview.4.21253.7 ]" after upgrading from preview 4 to 5.

@danroth27, the comment you left here https://devblogs.microsoft.com/aspnet/asp-net-core-updates-in-net-6-preview-5/#comment-3439 solved my issue. Upgrading Microsoft.VisualStudio.Web.CodeGeneration.Design from 6.0.0-preview.5.21313.1 to 6.0.0-preview.5.21321.1 did the job! Thank you 👍

WeihanLi · 2021-06-24T15:01:31Z

When I upgrade .NET 6 preview 4 to preview 5, I'm using a new JsonNode API introduced in preview 4(JsonNode.Parse(responseStr)), I got an error like follows:
Error CS0234: The type or namespace name 'Node' does not exist in the namespace 'System.Text.Json' (are you missing an assembly reference?)
You can find my sample code here if needed

Namespace changed from System.Text.Json.Node to System.Text.Json.Nodes

shrinidhi111 · 2021-06-24T16:37:10Z

Does anyone know whether this comes pre-installed in Windows 11?

danroth27 · 2021-06-24T21:52:12Z

@shrinidhi111 .NET 6 is not installed with Windows 11.

danroth27 · 2021-06-24T21:53:54Z

.NET 6 Preview 5, Blazor Webassembly has issue's with some of the Chrome Client and Firefox which results in halting the total functionality of the web app

@smjltd Thanks for reporting this! Could you please open an issue in the https://github.com/dotnet/aspnetcore/issues/new with details on how to reproduce the error you're seeing?

nbarnwell · 2021-06-30T13:59:32Z

Just a little thing I noticed - if you use Add/Remove programs to uninstall the SDK, it actually leaves the folder behind with a zero-byte file in it in C:\Program Files\dotnet\sdk. This confuses dotnet.exe into thinking the SDK is installed, yet doesn't have a dotnet.dll in it. I deleted the folder by hand and now dotnet.exe --info lists only the real SDKs I have installed, and has started working again. Seems like the installer just needs to make sure the folder is removed.

vahpetr · 2021-07-03T20:59:44Z

Appsettings do not merge.

Example:
appsettings.json { "Logging": { "LogLevel": { } } }
appsettings.Development.json { "Logging": { "LogLevel": { "Microsoft.AspNetCore.SignalR": "Trace" } } }

export ASPNETCORE_ENVIRONMENT=Development
dotnet run

Result: { "Logging": { "LogLevel": { } } }

krwq · 2021-07-06T07:07:59Z

@vahpetr this looks like separate issue, can you please create a new one?

rbhanda · 2021-07-14T21:43:04Z

closed in favor of #6467

smj0x · 2021-08-08T12:16:01Z

faced same issue while updating the dotnet 6 preview 4 to preview 6.

i fixed by creating new blazor webassembly project using preview 6. and then replaced App.razor file

<Router AppAssembly="@typeof(Program).Assembly"> <Found Context="routeData"> <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" /> <FocusOnNavigate RouteData="@routeData" Selector="h1" /> </Found> <NotFound> <LayoutView Layout="@typeof(MainLayout)"> <p role="alert">Sorry, there's nothing at this address.</p> </LayoutView> </NotFound> </Router>

this was the change i noticed
PreferExactMatches="@true"

also removed below refrence from .csproj file
<PackageReference Include="System.Net.Http.Json" Version="6.0.0-preview.6.21352.12" />
more testing is required on different machines, but works on mine after applying above changes.

leecow pinned this issue Jun 17, 2021

michaelgsharp added the announcement label Jun 18, 2021

krwq mentioned this issue Jun 25, 2021

Will .Net 6 come pre-installed in Windows 11? #6411

Closed

danroth27 mentioned this issue Jul 1, 2021

.NET 6 SDK installer doesn't uninstall cleanly dotnet/installer#10943

Closed

rbhanda unpinned this issue Jul 14, 2021

rbhanda closed this as completed Jul 14, 2021

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.NET 6 Preview 5 #6389

.NET 6 Preview 5 #6389

rbhanda commented Jun 17, 2021 •

edited by halter73

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rusuly commented Jun 18, 2021

vahpetr commented Jun 18, 2021

hugocorreia90 commented Jun 19, 2021 •

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gdar91 commented Jun 20, 2021

mairaw commented Jun 21, 2021

danroth27 commented Jun 21, 2021

danroth27 commented Jun 21, 2021

BrennanConroy commented Jun 21, 2021

vahpetr commented Jun 22, 2021

halter73 commented Jun 23, 2021 •

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smj0x commented Jun 24, 2021 •

edited by danroth27

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WeihanLi commented Jun 24, 2021 •

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hugocorreia90 commented Jun 24, 2021 •

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WeihanLi commented Jun 24, 2021 •

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shrinidhi111 commented Jun 24, 2021

danroth27 commented Jun 24, 2021

danroth27 commented Jun 24, 2021

nbarnwell commented Jun 30, 2021

vahpetr commented Jul 3, 2021

krwq commented Jul 6, 2021

rbhanda commented Jul 14, 2021

smj0x commented Aug 8, 2021 •

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.NET 6 Preview 5 #6389

.NET 6 Preview 5 #6389

Comments

rbhanda commented Jun 17, 2021 • edited by halter73 Loading

Known Issues

rusuly commented Jun 18, 2021

vahpetr commented Jun 18, 2021

hugocorreia90 commented Jun 19, 2021 • edited Loading

gdar91 commented Jun 20, 2021

mairaw commented Jun 21, 2021

danroth27 commented Jun 21, 2021

danroth27 commented Jun 21, 2021

BrennanConroy commented Jun 21, 2021

vahpetr commented Jun 22, 2021

halter73 commented Jun 23, 2021 • edited Loading

smj0x commented Jun 24, 2021 • edited by danroth27 Loading

WeihanLi commented Jun 24, 2021 • edited Loading

hugocorreia90 commented Jun 24, 2021 • edited Loading

WeihanLi commented Jun 24, 2021 • edited Loading

shrinidhi111 commented Jun 24, 2021

danroth27 commented Jun 24, 2021

danroth27 commented Jun 24, 2021

nbarnwell commented Jun 30, 2021

vahpetr commented Jul 3, 2021

krwq commented Jul 6, 2021

rbhanda commented Jul 14, 2021

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rbhanda commented Jun 17, 2021 •

edited by halter73

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hugocorreia90 commented Jun 19, 2021 •

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halter73 commented Jun 23, 2021 •

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smj0x commented Jun 24, 2021 •

edited by danroth27

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WeihanLi commented Jun 24, 2021 •

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hugocorreia90 commented Jun 24, 2021 •

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