ContainerRepository value with a 'folder' that ends in a ' doesn't give a good error

[wisamidris7]

This is a sample blazor app i didn't even edited a character and that also happen why

dotnet publish "C:\Users\Administrator\source\repos\BlazorApp29\BlazorApp29\BlazorApp29.csproj" -p:PublishProfile="DefaultContainer" -p:PublishSingleFile="true" -p:PublishTrimmed="false" --self-contained "true" --verbosity "quiet" --nologo -r "linux-x64" -p:ContainerRepository="WASL./identity-api"
-p:ContainerImageTag="latest"

C:\Program Files\dotnet\sdk\8.0.300\Containers\build\Microsoft.NET.Build.Containers.targets(242,5): error MSB4018: The
"CreateNewImage" task failed unexpectedly. [C:\Users\Administrator\source\repos\BlazorApp29\BlazorApp29\BlazorApp29.csp
roj]
C:\Program Files\dotnet\sdk\8.0.300\Containers\build\Microsoft.NET.Build.Containers.targets(242,5): error MSB4018: Micr
osoft.NET.Build.Containers.DockerLoadException: CONTAINER1009: Failed to load image from local registry. stdout: invali
d reference format [C:\Users\Administrator\source\repos\BlazorApp29\BlazorApp29\BlazorApp29.csproj]
C:\Program Files\dotnet\sdk\8.0.300\Containers\build\Microsoft.NET.Build.Containers.targets(242,5): error MSB4018:  [C:
\Users\Administrator\source\repos\BlazorApp29\BlazorApp29\BlazorApp29.csproj]
C:\Program Files\dotnet\sdk\8.0.300\Containers\build\Microsoft.NET.Build.Containers.targets(242,5): error MSB4018:    a
t Microsoft.NET.Build.Containers.DockerCli.LoadAsync(BuiltImage image, SourceImageReference sourceReference, Destinatio
nImageReference destinationReference, CancellationToken cancellationToken) in /_/src/Containers/Microsoft.NET.Build.Con
tainers/LocalDaemons/DockerCli.cs:line 107 [C:\Users\Administrator\source\repos\BlazorApp29\BlazorApp29\BlazorApp29.csp
roj]
C:\Program Files\dotnet\sdk\8.0.300\Containers\build\Microsoft.NET.Build.Containers.targets(242,5): error MSB4018:    a
t Microsoft.NET.Build.Containers.Tasks.CreateNewImage.PushToLocalRegistryAsync(BuiltImage builtImage, SourceImageRefere
nce sourceImageReference, DestinationImageReference destinationImageReference, CancellationToken cancellationToken) in
/_/src/Containers/Microsoft.NET.Build.Containers/Tasks/CreateNewImage.cs:line 200 [C:\Users\Administrator\source\repos\
BlazorApp29\BlazorApp29\BlazorApp29.csproj]
C:\Program Files\dotnet\sdk\8.0.300\Containers\build\Microsoft.NET.Build.Containers.targets(242,5): error MSB4018:    a
t Microsoft.NET.Build.Containers.Tasks.CreateNewImage.ExecuteAsync(CancellationToken cancellationToken) in /_/src/Conta
iners/Microsoft.NET.Build.Containers/Tasks/CreateNewImage.cs:line 170 [C:\Users\Administrator\source\repos\BlazorApp29\
BlazorApp29\BlazorApp29.csproj]
C:\Program Files\dotnet\sdk\8.0.300\Containers\build\Microsoft.NET.Build.Containers.targets(242,5): error MSB4018:    a
t Microsoft.NET.Build.Containers.Tasks.CreateNewImage.Execute() in /_/src/Containers/Microsoft.NET.Build.Containers/Tas
ks/CreateNewImage.cs:line 36 [C:\Users\Administrator\source\repos\BlazorApp29\BlazorApp29\BlazorApp29.csproj]
C:\Program Files\dotnet\sdk\8.0.300\Containers\build\Microsoft.NET.Build.Containers.targets(242,5): error MSB4018:    a
t Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() [C:\Users\Administrato
r\source\repos\BlazorApp29\BlazorApp29\BlazorApp29.csproj]
C:\Program Files\dotnet\sdk\8.0.300\Containers\build\Microsoft.NET.Build.Containers.targets(242,5): error MSB4018:    a
t Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(ITaskExecutionHost taskExecutionHost, TaskLoggingContext
taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExecuteTask) [C:\Users\Administrator\s
ource\repos\BlazorApp29\BlazorApp29\BlazorApp29.csproj]

[wisamidris7]

ohh because the . in WASL./

[baronfel]

To me the fact that you weren't warned of this invalid name until after we created the image and tried to load it into the local Docker daemon is a bug. There are several pre-check steps that should have validated your ContainerRepository value and either normalized it to a valid value or errored out before doing any work. I'd like to reopen this to track that.