How to reference DLLs inside packages?

I am trying to get a reference to Microsoft.CodeAnalysis.CSharp.dll from the com.unity.code-analysis package into an asmdef.

I have referenced "CodeAnalysis.Tests.Editor" in the asmdef references (with includePlatforms having just "Editor"), and added all the dlls to the "precompiledReferences":
"precompiledReferences": [
"Microsoft.CodeAnalysis.CSharp.dll",
"Microsoft.CodeAnalysis.CSharp.Workspaces.dll",
"Microsoft.CodeAnalysis.CSharp.Scripting.dll",
"Microsoft.CodeAnalysis.dll",
"Microsoft.CodeAnalysis.Scripting.dll",
"Microsoft.CodeAnalysis.Workspaces.dll",
"System.Collections.Immutable.dll",
"System.Composition.AttributedModel.dll",
"System.Composition.Convention.dll",
"System.Composition.Hosting.dll",
"System.Composition.Runtime.dll",
"System.Composition.TypedParts.dll",
"System.Reflection.Metadata.dll",
"System.Runtime.Loader.dll"
],

This however doesn't work. I don't see the dlls in the references in the generated project and I get compile errors.

What do I need to do to get this to work?

 

did you use the GUI or you manually edited the asmdef?
what version of Unity are you on?
try to restart the editor

maybe you also need

"overrideReferences": true,

if you manually edited the json

 

Yeah,

overrideReferences

was it.