"Unspecified Error. Please compress your error log..." when trying to launch EBII

Hi there

Just made a fresh install of TWMIIK and EBII in Windows 10, and I can't get it to launch.
I've updated Kingdoms to 1.05, and installed v2.3 of EBII.

I get the same result whether I launch from EB_Launcher.exe or Launcher.exe
I can launch vanilla without problems.
And the error log I'm supposed to compress? There's nothing in \logs.

What am I doing wrong?

EDIT: OK, figured it out: I read somewhere that you are supposed to run a single turn in vanilla before installing EBII. I did that and reinstalled EBII, and it worked.