I tried that, but it would be too messy. Anyway, I wrote the info down and here it is:
Thanks!
For the (possibe future) record, this kind of start-up python error message can also be found in My Games/Beyond the Swords/Logs/PythonErr2.log
Anyway, 'CIVILOPEDIA_PAGE_CHASSIS'...
There is no reference to that string whatsoever in the current version of Planetfall. This did exist though in version 4 and earlier, when the unit workshop still existed. So the only possibilities I can think of at the moment, are:
1) Despite what you think, you didn't delete your Planetfall folder of some previous version, before installing version 6. Version 5 removed a whole bunch of files which existed in version 4, so if you didn't delete your folder, those extra edited python files are assured to cause problems. Is there a CvScreenEnums.py file in Planetfall/Assets/Python/Screens? If there is, then you haven't deleted the previous version prior to installing v6.
2) Perhaps you once installed an earlier Planetfall version in your 'My Games' folder instead of the main Civ4/BtS/Mods folder, and forgot about it. Files in My Games override files in the main folder. So make sure there isn't anything there.
3) You somehow unknowingly installed an earlier version, thinking it was version 6. No idea how that could happen. AFAIK all the download links available point to the latest files.