BucketNotFoundException

[WriteFile]

This is what happens when I run ./deploy.sh initial_setup
./deploy.sh: line 17: ${PROJECT_NAME,,}: bad substitution
Initial setup...
Setting up a job bucket and a resource library bucket...
InvalidUrlError: Invalid bucket name in URL "-jobs".
InvalidUrlError: Invalid bucket name in URL "-resource-library".
Setting a job counter (appData/jobCounter.txt) to 0...
BucketNotFoundException: 404 gs://-jobs bucket does not exist.

I have added correct details

PROJECT_NAME="example-state-1234"
PROJECT_NAME_LOWERCASE="${PROJECT_NAME,,}"
PROJECT_ID="example-state-1234"
GCP_SERVICE_ACCOUNT_EMAIL="123456789-compute@developer.gserviceaccount.com"
DATA_EXPORTER_SERVICE_ACCOUNT="<DATA_EXPORTER_SERVICE_ACCOUNT>"