Default Error while installing nV One ROM.

Please help. I am getting this error when installing under aroma.

Installing ROM files
file_getprop: failed to stat "/tmp/aroma/toolchain.prop": No such file or directory
Phone - HTC One M8 - Rooted, S-On
Recovery - TWRP
ROM - ViperOneM8 1.6.0 | 1.54.401.5 | Android 4.4.2 Sense 6.0 |