title: Undefined function 'loadjson' for input arguments of type 'char'. Function does not work
body: <p>I want to load data saved in .json format. The files are actually saved like this: </p>
  
  <p>ph02-flanker-level1-block0-2014-05-16_17/32/16 etc. </p>
  
  <p>when reading them into the directory they look like this: </p>
  
  <p>ph02-flanker-level1-block0-2014-05-16_17:32:16 for some reason. </p>
  
  <p>I am using mac which realizes the data as unix, so, there is no .json ending or the like…</p>
  
  <p>That's not the main problem however, the loadjson function does not work anymore (It used to a couple of months ago…)</p>
  
  <p>This is the code I used: </p>
  
  <pre><code>data = loadjson('ph10-flanker-level1-block0-2014-05-16_17/33/42');
  data = cell2mat(data); 
  
  congruent = [data(:).congruent]'; 
  result = [data(:).result]';
  response_time = [data(:).response_time]';
  </code></pre>
  
  <p>The error message is: </p>
  
  <blockquote>
    <p>Undefined function 'loadjson' for input arguments of type 'char'.  </p>
  </blockquote>
  
  <p>The strange thing is, this actually used to work a couple of months ago. 
  Perhaps somebody has an idea. Thanks a lot in advance. </p>
  
  <p>Clem</p>