Problem in running the driver and app on linux system

[ADHATARAO]

I am using Ubuntu 18.04.3 LTS
Docker version 19.03.4, build 9013bf583a
I already tried to delete the container
and reinstalling docker.

I get errors even when I try to run script in databox-quickstart/blob/master/node/app/ directory

Following is the error generated when I try to run the example given in driver directory.
Reference link : https://github.com/me-box/databox-quickstart/blob/master/node/driver/README.md#writing-a-driver-in-node

Corresponding error :

cd src
sudo npm install
sudo npm start

npm WARN driver-helloworld-node@1.0.0 No repository field.

../../../testenv/start.sh: 5: [: true: unexpected operator
docker: Error response from daemon: Conflict. The container name "/arbiter" is already in use by container "e8dde9cb11a54a63e76e7cac483de536db6832d85810fc69aebc546508f9a218". You have to remove (or rename) that container to be able to reuse that name.
See 'docker run --help'.
docker: Error response from daemon: Conflict. The container name "/zest" is already in use by container "b5e90c4c7b1f236cc9ebd6e38291d2d1ddd6070cfa4a674f6a0fba6ee36b5da7". You have to remove (or rename) that container to be able to reuse that name.
See 'docker run --help'.
sh: 1: nodemon: not found
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! driver-helloworld-node@1.0.0 start: ../../../testenv/start.sh && nodemon -L -e js,ejs --max-old-space-size=128 main.js
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the driver-helloworld-node@1.0.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /home/sab/.npm/_logs/2019-10-21T12_04_46_389Z-debug.log

Command 'audited' not found, did you mean:

command 'auditd' from deb auditd

Try: sudo apt install