This is e-TeX, Version 3.1415926-2.6 (TeX Live 2014) **entering extended mode (./etrip.tex e-IniTeX: e-Trip format loaded. This is the e-Trip test [2013-11-21] for e-TeX v3.1415926-2.6. (You are using e-TeX version/revision 2.6) Missing character: There is no c in font nullfont! current interactionmode (l.230): nonstop current interactionmode (l.231): scroll current interactionmode (l.232): errorstop ! Bad interaction mode (-1). l.237 \interactionmode=-1 \1 1 % nonstop current interactionmode (l.237): nonstop ! Bad interaction mode (4). l.238 \interactionmode=4 \1 1 % nonstop current interactionmode (l.238): nonstop current interactionmode (l.239): scroll current interactionmode (l.239): scroll current interactionmode (l.239): nonstop current interactionmode (l.239): nonstop current interactionmode (l.239): errorstop current interactionmode (l.239): errorstop current interactionmode (l.240): errorstop 1 (l.243) 1 (l.245) current interactionmode (l.247): errorstop current interactionmode (l.247): scroll current interactionmode (l.247): nonstop \openout1 = `etrip.out'.