Debug strings from a plugin's Build.cs

I’m trying to make a plugin work on Linux. It’s recently been adapted to work on Mac from a Windows-only version and the only change was to add Mono support for Mac in the Build.cs file. But I obviously did something wrong. I just don’t know what it is. I’m trying to send debug message, but no matter what I do, I don’t seem to see them.

What I do is:

  1. Change the code.
  2. Replace the code in my Project/Plugins/PluginFolder with the new code.
  3. Restart the project.

I know it works in Windows. A friend tried it on Windows and it works: it adds a choice in the Blueprint elements choices. The project is InkUnreal, in case anyone is curious. But for now, I’d like to actually do this (I’m just starting with Unreal) and to begin with, I’d like to be able to print debug messages to somewhere in the editor.

I’d appreciate any help.

Thanks!