Using: ```XML <Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <TargetFramework>netcoreapp11</TargetFramework> <OutputType>exe</OutputType> <TargetName>TestFilename</TargetName> </PropertyGroup> </Project> ``` Creates `.runtimeconfig.json` and `.runtimeconfig.dev.json` files to be created that don't use the same name. :link: Taken from https://github.com/dotnet/project-system/issues/2556, and possibly the cause of the debugging issue there - tag @jnm2