<p>I'm trying to follow either of the following instructions:</p>

<ul>
<li><a href="https://istio.io/docs/setup/kubernetes/helm-install/" rel="nofollow noreferrer">https://istio.io/docs/setup/kubernetes/helm-install/</a></li>
<li><a href="https://github.com/istio/istio/tree/master/install/kubernetes/helm/istio" rel="nofollow noreferrer">https://github.com/istio/istio/tree/master/install/kubernetes/helm/istio</a></li>
</ul>

<pre><code>    ~ helm repo add istio.io https://storage.googleapis.com/istio-prerelease/daily-build/master-latest-daily/charts

    ~ helm repo list

    NAME        URL                                                                                   
    stable      https://kubernetes-charts.storage.googleapis.com                                      
    local       http://127.0.0.1:8879/charts                                                          
    istio.io    https://storage.googleapis.com/istio-prerelease/daily-build/master-latest-daily/charts

    ~ helm repo update

    ~ helm install install/kubernetes/helm/istio --name istio --namespace istio-system
    Error: failed to download "install/kubernetes/helm/istio" (hint: running `helm repo update` may help)

    ~ helm dependency update install/kubernetes/helm/istio

    Error: could not find &lt;current directory&gt;/install/kubernetes/helm/istio: stat 
    &lt;current directory&gt;/install/kubernetes/helm/istio: no such file or directory
</code></pre>

<p>To answer my own question for anyone else with the same issue:</p>
<p>Don't use the public helm repo.</p>
<p>Download a release archive from:</p>
<p><a href="https://github.com/istio/istio/releases" rel="nofollow noreferrer">https://github.com/istio/istio/releases</a></p>
<p>Unpack it, navigate into the istio root directory, then you can successfully do:</p>
<p>Helm 2.x syntax:</p>
<pre><code>helm install install/kubernetes/helm/istio --name istio --namespace istio-system
</code></pre>
<p>Helm 3.x syntax:</p>
<pre><code>helm install istio install/kubernetes/helm/istio --namespace istio-system
</code></pre>
