Default Error Executing updater Binary in zip

I am struggling to put a custom rom on my bionic. I have installed the latest safestrap on the phone and when I try to install a custom rom I get the following error on TWRP "error executing updater binary in zip. I am trying to load 4.3 liquid smooth on my phone. I am coming from ICS on the bionic. You guys know how to fix this problem? Help is really appreciated.