问题描述

本地调试 .NET Aspire 项目，启动时候遇见 Grpc.Core.RpcException 异常。

错误消息

Aspire.Hosting.Dashboard.Microsoft.AspNetCore.Components.Server.Circuits.CircuitHost[111]
Unhandled exception in circuit 'eREZIUtKB-Z6wCfAhYKkIpVdw_-O9qgpsgft9Yi_DHY'.
Grpc.Core.RpcException: Status(StatusCode="Internal", Detail="Error starting gRPC call. HttpRequestException: The SSL connection could not be established, see inner exception. AuthenticationException: The remote certificate is invalid because of errors in the certificate chain: UntrustedRoot", DebugException="System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception.")
---> System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception.
---> System.Security.Authentication.AuthenticationException: The remote certificate is invalid because of errors in the certificate chain: UntrustedRoot

问题解答

在启动窗口中，可以看见 warn 提示信息： Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer[8], The ASP.NET Core developer certificate is not trusted. For information about trusting the ASP.NET Core developer certificate, see https://aka.ms/aspnet/https-trust-dev-cert .

根据文档提示，找到了 " 信任 ASP.NET Core HTTPS 开发证书 " 部分的介绍，其中提到 dotnet dev-certs https --trust 命令来信任ASP.NET Core HTTPS 开发证书。

其实，通过Visual Studio的异常提示，也能发现需要执行[ dotnet dev-certs https ] 来生成 .NET 开发证书，然后使用 [ dotnet dev-certs https --trust ] 命令信任该证书。

## 生成 .NET的开发证书 
dotnet dev-certs https 

## 信任证书 
dotnet dev-certs https --trust

如下图：

完整的错误消息

warn: Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer[8]

The ASP.NET Core developer certificate is not trusted. For information about trusting the ASP.NET Core developer certificate, see https://aka.ms/aspnet/https-trust-dev-cert.

info: Aspire.Hosting.DistributedApplication[0]

Aspire version: 9.0.0+01ed51919f8df692ececce51048a140615dc759d

info: Aspire.Hosting.DistributedApplication[0]

Distributed application starting.

info: Aspire.Hosting.DistributedApplication[0]

Application host directory is: C:\Users\bulu\source\repos\myAspireApp\myAspireApp.AppHost

info: Aspire.Hosting.DistributedApplication[0]

Now listening on: https://localhost:17068

info: Aspire.Hosting.DistributedApplication[0]

Distributed application started. Press Ctrl+C to shut down.

fail: Aspire.Hosting.Dashboard.Model.DashboardClient[0]

Error loading data from the resource service.

System.Threading.Tasks.TaskCanceledException: A task was canceled.

at Grpc.Net.Client.Internal.Retry.RetryCallBaseClientStreamReader`2.MoveNext(CancellationToken cancellationToken)

at Grpc.Core.AsyncStreamReaderExtensions.ReadAllAsyncCore[T](IAsyncStreamReader`1 streamReader, CancellationToken cancellationToken)+MoveNext()

at Grpc.Core.AsyncStreamReaderExtensions.ReadAllAsyncCore[T](IAsyncStreamReader`1 streamReader, CancellationToken cancellationToken)+System.Threading.Tasks.Sources.IValueTaskSource<System.Boolean>.GetResult()

at Aspire.Dashboard.Model.DashboardClient.<>c__DisplayClass29_1.<<EnsureInitialized>g__WatchResourcesAsync|5>d.MoveNext() in /_/src/Aspire.Dashboard/ResourceService/DashboardClient.cs:line 323

--- End of stack trace from previous location ---

at Aspire.Dashboard.Model.DashboardClient.<>c__DisplayClass29_1.<<EnsureInitialized>g__WatchResourcesAsync|5>d.MoveNext() in /_/src/Aspire.Dashboard/ResourceService/DashboardClient.cs:line 323

--- End of stack trace from previous location ---

at Aspire.Dashboard.Model.DashboardClient.<>c__DisplayClass29_0.<<EnsureInitialized>g__WatchResourcesWithRecoveryAsync|3>d.MoveNext() in /_/src/Aspire.Dashboard/ResourceService/DashboardClient.cs:line 298

--- End of stack trace from previous location ---

at Aspire.Dashboard.Model.DashboardClient.<EnsureInitialized>g__ConnectAndWatchResourcesAsync|29_1(CancellationToken cancellationToken) in /_/src/Aspire.Dashboard/ResourceService/DashboardClient.cs:line 246

fail: Aspire.Hosting.Dashboard.Microsoft.AspNetCore.Components.Server.Circuits.CircuitHost[111]

Unhandled exception in circuit 'YBJjKTNbyeRc-Kms86UR3uEV_Nr2IkH8k4gT6ufwSyI'.

Grpc.Core.RpcException: Status(StatusCode="Internal", Detail="Error starting gRPC call. HttpRequestException: The SSL connection could not be established, see inner exception. AuthenticationException: The remote certificate is invalid because of errors in the certificate chain: UntrustedRoot", DebugException="System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception.")

---> System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception.

---> System.Security.Authentication.AuthenticationException: The remote certificate is invalid because of errors in the certificate chain: UntrustedRoot

at System.Net.Security.SslStream.CompleteHandshake(SslAuthenticationOptions sslAuthenticationOptions)

at System.Net.Security.SslStream.ForceAuthenticationAsync[TIOAdapter](Boolean receiveFirst, Byte[] reAuthenticationData, CancellationToken cancellationToken)

at System.Net.Http.ConnectHelper.EstablishSslConnectionAsync(SslClientAuthenticationOptions sslOptions, HttpRequestMessage request, Boolean async, Stream stream, CancellationToken cancellationToken)

--- End of inner exception stack trace ---

at System.Net.Http.ConnectHelper.EstablishSslConnectionAsync(SslClientAuthenticationOptions sslOptions, HttpRequestMessage request, Boolean async, Stream stream, CancellationToken cancellationToken)

at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)

at System.Net.Http.HttpConnectionPool.AddHttp2ConnectionAsync(QueueItem queueItem)

at System.Threading.Tasks.TaskCompletionSourceWithCancellation`1.WaitWithCancellationAsync(CancellationToken cancellationToken)

at System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)

at System.Net.Http.DiagnosticsHandler.SendAsyncCore(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)

at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)

at Grpc.Net.Client.Balancer.Internal.BalancerHttpHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)

at Grpc.Net.Client.Internal.GrpcCall`2.RunCall(HttpRequestMessage request, Nullable`1 timeout)

--- End of inner exception stack trace ---

at Grpc.Net.Client.Internal.Retry.RetryCall`2.StartRetry(Action`1 startCallFunc)

at Grpc.Net.Client.Internal.Retry.RetryCallBase`2.GetResponseCoreAsync()

at Aspire.Dashboard.Model.DashboardClient.<>c__DisplayClass29_0.<<EnsureInitialized>g__ConnectAsync|2>d.MoveNext() in /_/src/Aspire.Dashboard/ResourceService/DashboardClient.cs:line 262

--- End of stack trace from previous location ---

at Aspire.Dashboard.Components.ApplicationName.OnInitializedAsync() in /_/src/Aspire.Dashboard/Components/Controls/ApplicationName.razor.cs:line 32

at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()

at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)