Hi,<div><br></div><div>I hope this is the correct way to get in contact. </div><div><br></div><div>The documentation does not cover how to use symphony to solve models from AMPL, although there are some flags to call symphony with a AMPL model file.</div><div><br></div><div>To make the problem reproducible I created a docker-image:</div><div><a href="https://github.com/PatWie/symphony-docker">https://github.com/PatWie/symphony-docker</a><br></div><div><br></div>which contains all steps from<div><a href="http://www.coin-or.org/SYMPHONY/man-5.1/node19.html">http://www.coin-or.org/SYMPHONY/man-5.1/node19.html</a></div><div><br></div><div>(See <a href="https://github.com/PatWie/symphony-docker/blob/master/image/Dockerfile">https://github.com/PatWie/symphony-docker/blob/master/image/Dockerfile</a>)</div><div><br></div><div>However, I have the issue when calling</div><div>"/var/symphony/bin/symphony -F /var/symphony/SYMPHONY/Datasets/sample.mod -D /var/symphony/SYMPHONY/Datasets/sample.dat"</div><div><br></div>to get<div>"<br><div><div>Reading input file...</div><div><br></div><div>ERROR: SYMPHONY can only read GMPL/AMPL files if GLPK is </div><div>installed and the USE_GLPMPL compiler define is set. </div><div>Exiting.</div></div></div><div><br></div><div>"</div><div><br></div><div>What are the missing steps?</div>