I've been fighting with importing a thesis made in LaTeX to LyX (Windows 7 x64, the polish language, previously maintained with TeXnicCenter). I have found LyX a great tool and decided to move.
Unfortunately, I have spent way too much time on fighting with errors which I do not understand.

Here is the error log. Note that everything compiles in TeXnicCenter with no errors and 8 warnings related to some font shape substitutions. The log from LyX is in the attachment.
Specs:
Windows 7,
Miktex 2.9, packages updated on 02.03.2012,
Lyx 2.0.3