Having trouble debugging JUnit tests in a TeamCity Remote Agent

I am trying to run a unit test remotely in TeamCity because it consistently passes on my PC while consistently fails on the TeamCity Server.

I have set up a build configuration in TeamCity for my project consisting of an IntelliJ Idea Project build step.

I use Maven in my project.  

When I trigger the remote debug, it fails within the message:

"Maven project configuration required for module '<module name>' isn't available. Compilation of Maven projects is supported only if external build is started from an IDE."

I can run the same JUnit configuration locally just fine - so I don't think I have a general problem with my project configuration.

Is there any way I can get this to work?  Or is remote debugging JUnit tests in Maven modules totally not supported?

Here is some important information about my environment:

1. On my PC, I'm using IDEA 2018.1.4 (Ultimate Edition) Build #IU-181.5087.20, built on May 16, 2018
2. In my local IntelliJ, I'm using build #2018.1.58262 of the TeamCity integration plugin
3. On my server, I'm using TeamCity Professional 9.1.6 (build 37459)
4. The IntelliJ Idea Project build step has the following configuration:
   Unresolved Project Modules and Path Variables - only has MAVEN_REPOSITORY, set to %system.path.macro.MAVEN.REPOSITORY% - I've defined that variable, it's a user-defined one
   Detect global libraries and module-based JDK in the *.iml files: not selected
   Project SDK: %env.JAVA_HOME%
   Classes to compile: unchecked
   Incremental Make: unchecked
   Artifacts to build: none selected
   Run configurations to execute: none selected
5. I have the following IDEA meta-data files checked in and have verified that they appear within the environment TeamCity checked out:
   all *.iml files for all modules
   .idea directory - artifacts directory,compiler.xml,<root module>.iml,encodings.xml,modules.xml,code-comments-settings.xml,inspectionProfiles directory,runConfigurations directory,libraries,uiDesigner.xml,codeStyles,misc.xml,vcs.xml

Thanks,

-Ian Hamilton 

Modelshop