Unable to automatically deploy a dotnet app to Elastic Beanstalk

Question

I’m trying to deploy a test application to EB. I’m running into an issue. I followed this tutorial: https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/dotnet-linux-core-tutorial.html

When I upload the test application, it fails to start. /var/log/eb-engine.log says

2022/02/07 21:59:18.585543 [ERROR] An error occurred during execution of command [app-deploy] - [CheckProcfileForDotNetCoreApplication]. Stop running the command. Error: err or stat /var/app/staging/dotnet-core-tutorial: no such file or directory with file /var/app/staging/dotnet-core-tutorial

So I changed the parent directory in my source bundle so that it exported into /var/app/staging/dotnet-core-tutorial instead of /var/app/staging. Now I get this error

2022/02/07 22:29:51.468918 [ERROR] An error occurred during execution of command [app-deploy] - [CheckProcfileForDotNetCoreApplication]. Stop running the command. Error: the re is no .runtimeconfig.json file for your single application. Please provide a valid application

I confirmed that the source bundle does have a .runtimeconfig.json file.

Answer 1

The .runtimeconfig.json file is generated when you run the dotnet publish -o site command, so check if this command is running properly for you.

If you take a look on the tutorial, section "To create a source bundle" you have this file, so check the steps that you already did.

Also if you want to force this file to be generated you can add set <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles> directly, but this is normally needed when you are not creating executable files like class libraries.