Slicer error

hi tried down loading a few thing from site and when I load file into repetier host and try and use slicer it comes back with first layler height can not be greater than nozzle size printer is geeetech prusai3x on pc using windows 7/ 64 bit quad core repetier host 1.6.0. with slicer3r I am new to 3d printing and have only just finished building my printer and getting it set up ok printed one thing a scraper and now I am not having any look hope you can help me please

Hi @peterbee2,

Sorry I do not have any experience with Repetier host— perhaps someone here on the forum does?

Are you able to maybe try using just slic3r? Or maybe Cura? Does the design open up on there properly?