Using Cosmos with UseEmulator breaks manifest publishing:

[mitchdenny]

Code:

var builder = DistributedApplication.CreateBuilder(args);

var cache = builder.AddRedis("cache");
var cosmos = builder.AddAzureCosmosDB("mycosmos").UseEmulator().AddDatabase("mydb");

var apiService = builder.AddProject<Projects.AspireApp1_ApiService>("apiservice");

builder.AddProject<Projects.AspireApp1_Web>("webfrontend")
    .WithReference(cache)
    .WithReference(apiService)
    .WithReference(cosmos);

builder.Build().Run();

Logs:

PS C:\Code\dotnet\aspire-dogfood\dev\AspireApp1> dotnet run --project .\AspireApp1.AppHost\AspireApp1.AppHost.csproj -- --publisher manifest --output-path manifest.json
Building...
fail: Microsoft.Extensions.Hosting.Internal.Host[11]
      Hosting failed to start
      Aspire.Hosting.DistributedApplicationException: Azure Cosmos DB resource does not have endpoint annotation with name 'emulator'.
         at Aspire.Hosting.Azure.Data.Cosmos.AzureCosmosDBResource.GetEmulatorPort(String endpointName) in C:\Code\dotnet\aspire\src\Aspire.Hosting.Azure\AzureCosmosDBResource.cs:line 43
         at Aspire.Hosting.Azure.Data.Cosmos.AzureCosmosDBResource.GetConnectionString() in C:\Code\dotnet\aspire\src\Aspire.Hosting.Azure\AzureCosmosDBResource.cs:line 28
         at Aspire.Hosting.AzureCosmosDBCloudApplicationBuilderExtensions.WriteCosmosDBToManifest(ManifestPublishingContext context, AzureCosmosDBResource cosmosDb) in C:\Code\dotnet\aspire\src\Aspire.Hosting.Azure\AzureCosmosDBCloudApplicationBuilderExtensions.cs:line 53
         at Aspire.Hosting.AzureCosmosDBCloudApplicationBuilderExtensions.<>c__DisplayClass0_0.<AddAzureCosmosDB>b__0(ManifestPublishingContext context) in C:\Code\dotnet\aspire\src\Aspire.Hosting.Azure\AzureCosmosDBCloudApplicationBuilderExtensions.cs:line 29
         at Aspire.Hosting.Publishing.ManifestPublisher.<>c__DisplayClass12_0.<WriteResource>b__0() in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 76
         at Aspire.Hosting.Publishing.ManifestPublisher.<>c__DisplayClass12_0.<WriteResource>g__WriteResourceObject|1[T](T resource, Action action) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 99
         at Aspire.Hosting.Publishing.ManifestPublisher.WriteResource(IResource resource, ManifestPublishingContext context) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 76
         at Aspire.Hosting.Publishing.ManifestPublisher.WriteResources(DistributedApplicationModel model, ManifestPublishingContext context) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 63
         at Aspire.Hosting.Publishing.ManifestPublisher.WriteManifestAsync(DistributedApplicationModel model, Utf8JsonWriter jsonWriter, CancellationToken cancellationToken) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 52
         at Aspire.Hosting.Publishing.ManifestPublisher.PublishInternalAsync(DistributedApplicationModel model, CancellationToken cancellationToken) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 40
         at Aspire.Hosting.Publishing.ManifestPublisher.PublishAsync(DistributedApplicationModel model, CancellationToken cancellationToken) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 24
         at Aspire.Hosting.DistributedApplicationRunner.ExecuteAsync(CancellationToken stoppingToken) in C:\Code\dotnet\aspire\src\Aspire.Hosting\DistributedApplicationRunner.cs:line 25
         at Microsoft.Extensions.Hosting.Internal.Host.<StartAsync>b__15_1(IHostedService service, CancellationToken token)
         at Microsoft.Extensions.Hosting.Internal.Host.ForeachService[T](IEnumerable`1 services, CancellationToken token, Boolean concurrent, Boolean abortOnFirstException, List`1 exceptions, Func`3 operation)
Unhandled exception. System.AggregateException: One or more errors occurred. (Azure Cosmos DB resource does not have endpoint annotation with name 'emulator'.) 
 ---> Aspire.Hosting.DistributedApplicationException: Azure Cosmos DB resource does not have endpoint annotation with name 'emulator'.
   at Aspire.Hosting.Azure.Data.Cosmos.AzureCosmosDBResource.GetEmulatorPort(String endpointName) in C:\Code\dotnet\aspire\src\Aspire.Hosting.Azure\AzureCosmosDBResource.cs:line 43
   at Aspire.Hosting.Azure.Data.Cosmos.AzureCosmosDBResource.GetConnectionString() in C:\Code\dotnet\aspire\src\Aspire.Hosting.Azure\AzureCosmosDBResource.cs:line 28
   at Aspire.Hosting.AzureCosmosDBCloudApplicationBuilderExtensions.WriteCosmosDBToManifest(ManifestPublishingContext context, AzureCosmosDBResource cosmosDb) in C:\Code\dotnet\aspire\src\Aspire.Hosting.Azure\AzureCosmosDBCloudApplicationBuilderExtensions.cs:line 53
   at Aspire.Hosting.AzureCosmosDBCloudApplicationBuilderExtensions.<>c__DisplayClass0_0.<AddAzureCosmosDB>b__0(ManifestPublishingContext context) in C:\Code\dotnet\aspire\src\Aspire.Hosting.Azure\AzureCosmosDBCloudApplicationBuilderExtensions.cs:line 29
   at Aspire.Hosting.Publishing.ManifestPublisher.<>c__DisplayClass12_0.<WriteResource>b__0() in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 76
   at Aspire.Hosting.Publishing.ManifestPublisher.<>c__DisplayClass12_0.<WriteResource>g__WriteResourceObject|1[T](T resource, Action action) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 99
   at Aspire.Hosting.Publishing.ManifestPublisher.WriteResource(IResource resource, ManifestPublishingContext context) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 76
   at Aspire.Hosting.Publishing.ManifestPublisher.WriteResources(DistributedApplicationModel model, ManifestPublishingContext context) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 63
   at Aspire.Hosting.Publishing.ManifestPublisher.WriteManifestAsync(DistributedApplicationModel model, Utf8JsonWriter jsonWriter, CancellationToken cancellationToken) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 52
   at Aspire.Hosting.Publishing.ManifestPublisher.PublishInternalAsync(DistributedApplicationModel model, CancellationToken cancellationToken) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 40
   at Aspire.Hosting.Publishing.ManifestPublisher.PublishAsync(DistributedApplicationModel model, CancellationToken cancellationToken) in C:\Code\dotnet\aspire\src\Aspire.Hosting\Publishing\ManifestPublisher.cs:line 24
   at Aspire.Hosting.DistributedApplicationRunner.ExecuteAsync(CancellationToken stoppingToken) in C:\Code\dotnet\aspire\src\Aspire.Hosting\DistributedApplicationRunner.cs:line 25
   at Microsoft.Extensions.Hosting.Internal.Host.<StartAsync>b__15_1(IHostedService service, CancellationToken token)
   at Microsoft.Extensions.Hosting.Internal.Host.ForeachService[T](IEnumerable`1 services, CancellationToken token, Boolean concurrent, Boolean abortOnFirstException, List`1 exceptions, Func`3 operation)
   at Microsoft.Extensions.Hosting.Internal.Host.StartAsync(CancellationToken cancellationToken)
   at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
   at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
   at Aspire.Hosting.DistributedApplication.RunAsync(CancellationToken cancellationToken) in C:\Code\dotnet\aspire\src\Aspire.Hosting\DistributedApplication.cs:line 147
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at System.Threading.Tasks.Task.Wait()
   at Aspire.Hosting.DistributedApplication.Run() in C:\Code\dotnet\aspire\src\Aspire.Hosting\DistributedApplication.cs:line 155
   at Program.<Main>$(String[] args) in C:\Code\dotnet\aspire-dogfood\dev\AspireApp1\AspireApp1.AppHost\Program.cs:line 13
PS C:\Code\dotnet\aspire-dogfood\dev\AspireApp1>

[davidfowl]

@mitchdenny is this fixed?

[mitchdenny]

Yes