type field missing from chart schema

[smlx]

Is this a request for help?: No

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Is this a BUG REPORT or FEATURE REQUEST? (choose one): BUG REPORT

Version of Helm and Kubernetes:

$ helm version
version.BuildInfo{Version:"v3.2.4", GitCommit:"0ad800ef43d3b826f31a5ad8dfbb4fe05d143688", GitTreeState:"clean", GoVersion:"go1.13.12"}

$ kubectl version
Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.1", GitCommit:"7879fc12a63337efff607952a323df90cdc7a335", GitTreeState:"clean", BuildDate:"2020-04-08T17:38:50Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.2", GitCommit:"52c56ce7a8272c798dbc29846288d7cd9fbae032", GitTreeState:"clean", BuildDate:"2020-04-30T20:19:45Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}

$ ct version
Version:	 v3.0.0
Git commit:	 50db473a1e68c605b18d82f019d83ea401542213
Date:		 2020-07-24T20:35:05Z
License:	 Apache 2.0

What happened:
I created a PR which ran the chart-testing github action (https://github.com/helm/chart-testing-action). My chart failed with:

Error validating data '/workdir/charts/lagoon-core/Chart.yaml' with schema '/etc/ct/chart_schema.yaml'
	type: Unexpected element

What you expected to happen:
I expected my chart to pass the ct lint check.

How to reproduce it (as minimally and precisely as possible):
Run the chart-testing github action against a chart which has a type field.

Anything else we need to know:
n/a

[estahn]

The following worked for me on MacOS:

rm -rf /usr/local/etc/ct
brew reinstall chart-testing