"Error occurred in the launcher container: Template launch failed. See console logs."

Hi all!

I get an error when trying to run this piece of code in Cloud Shell:
```
gcloud beta dataflow flex-template run "video-object-tracking" \
--project=${PROJECT} \
--region=${REGION} \
--template-file-gcs-location=gs://${DATAFLOW_TEMPLATE_BUCKET}/dynamic_template_video_analytics.json \
--parameters=<<'EOF'
^~^autoscalingAlgorithm="NONE"~numWorkers=5~maxNumWorkers=5~workerMachineType=n1-highmem-4
~inputNotificationSubscription=projects/${PROJECT}/subscriptions/${GCS_NOTIFICATION_SUBSCRIPTION}
~outputTopic=projects/${PROJECT}/topics/${OBJECT_DETECTION_TOPIC}
~errorTopic=projects/${PROJECT}/topics/${ERROR_TOPIC}
~features=OBJECT_TRACKING~entities=window,person~confidenceThreshold=0.9~windowInterval=1
~tableReference=${PROJECT}:${BIGQUERY_DATASET}.object_tracking_analysis
~streaming=true
EOF
```
The error in Dataflow:

Error occurred in the launcher container: Template launch failed. See console logs

The error in console logs:
"message":"java failed with exit status 1"

Any ideas where t come from?

Thank you!