try to install directly from git repo

[cometta]

after executing : helm3 package prefect-ui/ -d ./charts inside refect-server-k8 folder,

Error: found in Chart.yaml, but missing in charts/ directory: postgresql-ha, minio

[szelenka]

If you want to install the Helm chart from the repo, you'll need to download the linked packages. The dependencies are linked in the Chart.yaml file, which you can download by following this URL:
https://helm.sh/docs/helm/helm_dependency_update/

[cometta]

cd prefect-server-k8
helm3 package prefect-ui/ -d ./charts

> Error: found in Chart.yaml, but missing in charts/ directory: postgresql-ha, minio

helm3 dependency update

>Error: validation: chart.metadata is required

helm3 dependency update prefect-ui/

Hang tight while we grab the latest from your chart repositories...
...Unable to get an update from the "local" chart repository (http://127.0.0.1:8879/charts):
	Get http://127.0.0.1:8879/charts/index.yaml: dial tcp 127.0.0.1:8879: connect: connection refused
...Successfully got an update from the "prefect-server-k8" chart repository
...Successfully got an update from the "stable" chart repository
...Successfully got an update from the "bitnami" chart repository
Update Complete. Happy Helming!
Error: open /Users/the_uiser/Library/Caches/helm/repository/local-index.yaml: no such file or directory

helm3 dependency list prefect-ui/

>NAME         	VERSION	REPOSITORY                        	STATUS
postgresql-ha	2.x.x  	https://charts.bitnami.com/bitnami	missing
minio        	3.x.x  	https://charts.bitnami.com/bitnami	missing

can help to advice if the command is correct ?