Tex2lyx cannot be compiled and the problem is commit:
http://www.lyx.org/trac/changeset/66fa801e74e1775b31008df548332436ce79e2e1/lyxgit by JMarc. Reverting this commit makes LyX compilable for me. The problem for the compiler seems to be the Length::inPixel feature. JMarc, could you please have a look? thanks and regards Uwe