Docker -- tried to fix issue, made it much worse-CodePudding

I'm running a MacOS. I'm not very familiar with docker and I was following the online examples on how to use docker files when I followed a trail of bad internet advice and ended up here... I'm trying to install and run this open sourced project: https://github.com/agrimgupta92/derl run the docker command:

docker build -t derl ~Desktop/derl/docker But I'm getting the following error:

[ ] Building 0.1s (2/2) FINISHED                                                         
 => [internal] load build definition from Dockerfile                                0.0s
 => => transferring dockerfile: 37B                                                 0.0s
 => [internal] load .dockerignore                                                   0.0s
 => => transferring context: 2B                                                     0.0s
failed to solve with frontend dockerfile.v0: failed to create LLB definition: base name ($PARENT_IMAGE) should not be blank

This seems like something to fix in the docker file of the github and I'm not experienced enough to know what to do.

CodePudding user response：

here is your command to build the image

set -x

PARENT=ubuntu:16.04
TORCH=cpuonly
TAG=derl
USER_ID=`id -u`

docker build -f ~Desktop/derl/docker/Dockerfile \
  --build-arg PARENT_IMAGE=${PARENT} \
  --build-arg TORCH=${TORCH} \
  --build-arg USER_ID=${USER_ID} \
  -t ${TAG} ~Desktop/derl/docker/