title: Create New Python 3 notebook in Colaboratory Fails with error message
body: <p>I have recently started to use Colaboratory and I  am trying to create a new notebook.</p>
  
  <p>But when I try to Open new notebook (New Python 3 notebook) if fails with this error message:</p>
  
  <p>Notebook loading error
  There was an error loading this notebook. Ensure that the file is accessible and try again.
  <a href="https://drive.google.com/drive/?action=locate&amp;id=1Hfx8Cl68kYnKZu90U5TADO0XqKsBq_fw&amp;authuser=0" rel="noreferrer">https://drive.google.com/drive/?action=locate&amp;id=1Hfx8Cl68kYnKZu90U5TADO0XqKsBq_fw&amp;authuser=0</a>
  [object Object]
  Error: [object Object]
      at d (<a href="https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab_20180222_085323-RC01_186629092:1135:347" rel="noreferrer">https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab_20180222_085323-RC01_186629092:1135:347</a>)
      at Object.next (<a href="https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab_20180222_085323-RC01_186629092:1135:493" rel="noreferrer">https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab_20180222_085323-RC01_186629092:1135:493</a>)
      at b (<a href="https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab_20180222_085323-RC01_186629092:522:42" rel="noreferrer">https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab_20180222_085323-RC01_186629092:522:42</a>)
      at </p>
  
  <p>I saved a copy of the Welcome to Colaboratory notebook to my Google Drive.
  When I try to Open Drive notebook, and select the notebook copy it crashes with the same error message above.</p>
  
  <p>What else can I try to create a new notebook?</p>
  
  <p>Thanks</p>