title: Unable to install kubernetes charts on specified namespace
body: <p>I have installed a cluster on Google Kubernetes Engine. </p>
  
  <p>And then, I created namespace "staging"</p>
  
  <pre><code>$ kubectl get namespaces
  default       Active    26m
  kube-public   Active    26m
  kube-system   Active    26m
  staging       Active    20m
  </code></pre>
  
  <p>Then, I switched to operate in the staging namespace</p>
  
  <pre><code>$ kubectl config use-context staging
  $ kubectl config current-context
  staging
  </code></pre>
  
  <p>And then, I installed postgresql using helm on staging namespace</p>
  
  <pre><code>helm install --name staging stable/postgresql
  </code></pre>
  
  <p>But I got: </p>
  
  <blockquote>
    <p>Error: release staging failed: namespaces "staging" is forbidden: User "system:serviceaccount:kube-system:default" cannot get namespaces in the namespace "staging": Unknown user "system:serviceaccount:kube-system:default"</p>
  </blockquote>
  
  <p>What does it mean..?? How to get it working..??</p>
  
  <p>Thank youu..</p>