Helm V3 - Cannot find the official repo

I have been trying to install nginx ingress using helm version 3

helm install my-ingress stable/nginx-ingress

But Helm doesn't seem to be able to find it's official stable repo. It gives the message:

> Error: failed to download "stable/nginx-ingress" (hint: running helm > repo update may help)

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I tried helm repo update. But it doesn't help.

I tried listing the repos helm repo list but it is empty.

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I tried to add the stable repo:

helm repo add stable https://github.com/helm/charts/tree/master/stable

But it fails with:

> Error: looks like "https://github.com/helm/charts/tree/master/stable" > is not a valid chart repository or cannot be reached: failed to fetch > https://github.com/helm/charts/tree/master/stable/index.yaml : 404 Not > Found

The stable repository is hosted on https://kubernetes-charts.storage.googleapis.com/. So, try the following:

helm repo add stable https://kubernetes-charts.storage.googleapis.com/

EDIT 2020-11-16: the above repository seems to have been deprecated. The following should now work instead:

helm repo add stable https://charts.helm.sh/stable

Be aware that Helm v3 does not have the use of Tiller.

1. Install Helm v3:

curl https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 > get_helm.sh
chmod 700 get_helm.sh
./get_helm.sh

2. Install Ingress-Nginx:

helm repo add stable https://kubernetes-charts.storage.googleapis.com/
helm install my-nginx stable/nginx-ingress --set rbac.create=true 

From Helm Blog -

> On November 13, 2020 the stable and incubator charts repository will > reach the end of development and become archives. You can find that > many of the charts have moved to other, community managed, > repositories. You can discover these on the Artifact Hub.

The best way to discover a chart by searching the Artifact Hub. And if you select nginx-ingress from ORG Helm, you can see the instruction for adding a repo.

helm repo add nginx-stable https://helm.nginx.com/stable

Below solution worked for me.

# Below command is not working
$ helm repo add stable https://kubernetes-charts.storage.googleapis.com/

Error: repo "https://kubernetes-charts.storage.googleapis.com/" is no longer available; try "https://charts.helm.sh/stable" instead

#Try this one, it's wokring.
$ helm repo add stable https://charts.helm.sh/stable

"stable" has been added to your repositories

The stable repositories are in helm hub https://hub.helm.sh/charts

Install the nginx chart for nginx ingress

helm install bitnami/nginx --version 6.2.0

At the time of writing this answer none of the previous comments worked for me. I want to share what did work for me in case some else is in the same situation:

helm repo add nginx-stable https://helm.nginx.com/stable
helm repo update
helm install my-nginx nginx-stable/nginx-ingress --set rbac.create=true

if that doesn't work, try to search the new chart and use the updated name (in case it changed)

helm search repo nginx