Helm does not resolve local dependencies repository file path-CodePudding

i'm triyng to do one Helm Chart for different environments. In many tutorials such scheme should works, but my structure does not read value from dependency repository. Helm just ignores it.

I have following folder structure

helm
   - charts
       - core-web
           - Chart.yaml
           - values.yaml
           - templates
       - frontend
           - Chart.yaml
           - values.yaml
           - templates
   - prod
       - Chart.yaml
       - values.yaml
   - dev
       - Chart.yaml
       - values.yaml

prod/Chart.yaml

apiVersion: v1
name: test
version: 1.0.0

dependencies:
  - name: core-web
    version: "1.37.0"
    repository: file://../charts/core-web/
  - name: frontend
    version: "1.6.0"
    repository: "file://../charts/frontend"

From helm folder i execute following command

helm install ./prod --dry-run --generate-name -n sandbox -f prod/values.yaml
Error: INSTALLATION FAILED: found in Chart.yaml, but missing in charts/ directory: core-web, frontend

If i move charts forlder to prod folder, then everithing works. Why helm does not accept file path from dependency repository? It should: