[NTG-context] unknown library 'loc'

Has someone an idee what causes the unknown library message as in the log below? Is it harmful? fonts > typescripts > unknown library 'loc' (/Users/hansm/tex/context-16/tex/texmf-context/tex/context/base/type-imp-texgyre.mkiv){/Users/hansm/tex/context-16/tex/texmf/fonts/map/dvips/lm/lm-math.map}{/Users/hansm/tex/context-16/tex/texmf/fonts/map/dvips/lm/lm-rm.map}{/Users/hansm/tex/context-16/tex/texmf-context/fonts/map/pdftex/context/mkiv-base.map}) ConTeXt ver: 2013.12.26 12:50 MKIV beta fmt: 2013.12.29 int: english/english Hans van der Meer