title: Error: validation: chart.metadata is required when using helm install Traefik
body: <p>I am now install Traefik using helm(<code>version.BuildInfo{Version:"v3.0.2", GitCommit:"19e47ee3283ae98139d98460de796c1be1e3975f", GitTreeState:"clean", GoVersion:"go1.13.5"}</code>),follow this <a href="https://docs.traefik.io/getting-started/install-traefik/" rel="noreferrer">doc</a>:</p>
  
  <pre><code>git clone https://github.com/containous/traefik-helm-chart
  helm install ./traefik-helm-chart
  </code></pre>
  
  <p>give me this error:</p>
  
  <pre><code>Error: must either provide a name or specify --generate-name
  </code></pre>
  
  <p>and I am using command like this:</p>
  
  <pre><code>helm install ./traefik-helm-chart --generate-name
  </code></pre>
  
  <p>and give this tips:</p>
  
  <pre><code>Error: validation: chart.metadata is required
  </code></pre>
  
  <p>what should I do to fix this?</p>