title: as.h2o ERROR: Unexpected HTTP Status code: 500 Server Error
body: <p>I'm trying to do something with <code>h2o</code> in <code>Rstudio</code>, but have problems when using <code>as.h2o()</code>. It always gives back the following <code>error</code>.</p>
  
  <p>For example:</p>
  
  <pre><code>library(h2o)
  localH2O = h2o.init()
  
  finaldata.hex = as.h2o(finaldata)
  
  
  ERROR: Unexpected HTTP Status code: 500 Server Error (url = http://localhost:54321/3/PostFile?destination_frame=%2Fprivate%2Fvar%2Ffolders%2F8z%2F29h4lb311gbdhg58mj704g580000gn%2FT%2FRtmpr83spR%2Ffile12ab3b8df30c.csv_sid_a24d_3)
  
  Error: lexical error: invalid char in json text.
                                         &lt;html&gt; &lt;head&gt; &lt;meta http-equiv=
                       (right here) ------^
  </code></pre>
  
  <p>Would you please help me to figure out how to fix this <code>error</code>?</p>
  
  <p>Thanks,</p>