Hello Laber_Mon, Your submission (id: 9725971) is invalid, below are the invalid reasons: Error encountered while running your Docker container; contact the Challenge Organizers in the Discussion Board for more info. Sincerely, Challenge Administrator

Created by Stephen Opiyo Tingili
@Tingili , I also forgot to mention this earlier: have you had a chance to look at the provided [example model written in R](https://github.com/Sage-Bionetworks-Challenges/ptb-challenge-r-sample-model)? This example includes a Dockerfile that you and your team can use as reference!
Hi @Tingili , Submission ID 9725971 received the following error: ``` Error in library(optparse) : there is no package called 'optparse' Execution halted ``` I understand the process is frustrating. Before submitting, do you first try to locally run the container? I highly suggest it if not! A sample Docker run command is provided [here](https://www.synapse.org/#!Synapse:syn26133770/wiki/618030). For the input directory, you can use the [training data](https://www.synapse.org/#!Synapse:syn35279796). Let me know if you have any questions! EDIT: typo fix

We are soon giving up because of Docker error page is loading…