argodcd commandlin create app for webapp-kustom-prod not going through-rpc error: code = InvalidArgument desc = application spec

[eliassal]

Hi I reached minute 28 of the video and tried to apply
argocd app create webapp-kustom-prod --repo https://gitea.cnoe.localtest.me:8443/giteaAdmin/argo-examples.git --path kustom-webapp/overlays/prod --dest-server https://kubernetes.default.svc --dest-namespace prod
I am getting the following error

level=fatal msg="rpc error: code = InvalidArgument desc = application spec for webapp-kustom-prod is invalid: InvalidSpecError: Unable to generate manifests in kustom-webapp/overlays/prod: rpc error: code = Unknown desc = kustomize build <path to cached source>/kustom-webapp/overlays/prod failed exit status 1: Error: invalid Kustomization: json: cannot unmarshal string into Go struct field Kustomization.patches of type types.Patch"

Thanks for your help