switched to Lovelace Dashboards and card is not working anymore

[GitHubxtsnl]

running HA 0.107.5
I recently switches to Lovelace Dashboards. I created a copy of an existing .yaml file and associated with the newly created Dashboard. An now I get the error "Custom element doesn't exist: gauge-card."

This is my .yaml config:

- type: js url: /community_plugin/gauge-card/gauge-card.js

and

# SINGLE GAUGE CARD FOR STROOM- AND GASVERBRUIK - type: custom:gauge-card title: Stroom entity: sensor.power_consumption min: 0 max: 1 severity: green: 0 amber: 0.4 red: 0.6 - type: custom:gauge-card title: Gas entity: sensor.hourly_gas_consumption min: 0 max: 0.25 severity: green: 0 amber: 0.1 red: 0.2

[GitHubxtsnl]

I moved the resources to the configuration.yaml file and this fixed the issue.