Problems when installing Discourse on Ubuntu 16.04

We completed the installation of Discouse on Ubuntu 16.04 but ended up with an error. What does this mean and how do we fix it?


Updates successful. Rebuilding in 5 seconds.Building appWARNING: We are about to start downloading the Discourse base imageThis process may take anywhere between a few minutes to an hour, depending on your network speedPlease be patientUnable to find image ‘discourse/base:2.0.20180404’ locally2.0.20180404: Pulling from discourse/base22dc81ace0ea: Pulling fs layer1a8b3c87dba3: Pulling fs layer91390a1c435a: Pulling fs layer07844b14977e: Pulling fs layerb78396653dae: Pulling fs layeref3e3cc07f1b: Pulling fs layer07844b14977e: Waitingb78396653dae: Waitingef3e3cc07f1b: Waiting1a8b3c87dba3: Verifying Checksum1a8b3c87dba3: Download complete91390a1c435a: Verifying Checksum91390a1c435a: Download complete07844b14977e: Verifying Checksum07844b14977e: Download completeb78396653dae: Verifying Checksumb78396653dae: Download complete22dc81ace0ea: Verifying Checksum22dc81ace0ea: Download complete22dc81ace0ea: Pull complete1a8b3c87dba3: Pull complete91390a1c435a: Pull complete07844b14977e: Pull completeb78396653dae: Pull completeef3e3cc07f1b: Verifying Checksumef3e3cc07f1b: Download completeef3e3cc07f1b: Pull completeDigest: sha256:745365df6e01943d48cbe4c59214c76ac302def2d00a07aff07d625b306bbeb7Status: Downloaded newer image for discourse/base:2.0.20180404Ensuring launcher is up to dateFetching originLauncher is up-to-datecd /pups && git pull && /pups/bin/pups --stdinAlready up-to-date.I, [2018-05-11T15:33:59.080291 #13] INFO – : Loading --stdin/pups/lib/pups/cli.rb:15:in split': invalid byte sequence in US-ASCII (ArgumentError) from /pups/lib/pups/cli.rb:15:in run’ from /pups/bin/pups:8:in `'fe021b0ffba13176b084975c3fc72ebc36daad50ad659e7c94871e269b3236c5** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than oneroot@tamigut:/var/discourse#

I beleive you have special characters in your app.yml. Check that thoroughly for errors.