Did you run this before building?: eval `opam config env` I tried this Dockerfile and it succeeded, maybe compare your steps with the ones below. If it still do

Did you run this before building?: eval `opam config env` I tried this Dockerfile and it succeeded, maybe compare your steps with the ones below. If it still doesn't work try moving this discussion to stackoverflow or the OCaml mailing list and provide the output when the infinite loop happens. FROM ubuntu:trusty RUN apt-get -y update && apt-get -y install opam aspcud && opam init -y RUN apt-get install -y m4 libexpat1-dev libgtk2.0-dev RUN opam install -y ocamleditor