Quote Originally Posted by nikolai1962
It is more useful than show_err but it may not be immediately obvious, especially with some errors. You do get a lot more specific type errors as you mod but it doesn't include everything and it does include a ton of warning level messages. (I think alpaca posted something that showed how to tweak the level of error messages you get but i forget where.)

Some errors just give the unknown error message thing. In my case these were mostly errors in the text files. As in rtw these are generally insta-crash type errors, things like no city/region name in the settlements bin file.
The error log levels are (iirc):
trace<info<warning<error<always

If you use one level you'll get all messages of higher levels, so trace will give you everything whereas always will be pretty useless unless you throw custom messages via script.