Surfacing errors from ExternalSystemProjectResolver.resolveProjectInfo in Messages tool window?

Hi!

I'm working on an external system resolver plugin. If I throw an ExternalSystemException from ExternalSystemProjectResolver.resolveProjectInfo() (in case anything goes wrong during project import), the IDE does not show any error message.

What is the best way to ensure that error messages / exceptions during external project import is shown in the Messages tool window?

I've created this bare bones dummy plugin to try to isolate and demonstrate the issue:
https://github.com/glombard/intellij-plugin-experiments/blob/master/plugin1/src/com/codeblast/plugin1/FooSystemProjectResolver.java

Thanks a lot!