title: jenkins extended choice parameter plugin multi select values from a property file
body: <p>How do you define the property file to use those values to populate the multi select parameter type of <a href="https://wiki.jenkins-ci.org/display/JENKINS/Extended+Choice+Parameter+plugin" rel="noreferrer">Extended Choice Parameter</a> plugin in Jenkins ?</p>
  
  <p>The plugin is in Jenkins version : 0.34.</p>
  
  <p>I tried to configure a multi select based on a property file, but I can't get the plugin to read my property file correctly.</p>
  
  <p>The file is found.</p>
  
  <p>If I put one line in the file, I get an error from the plugin saying it needs two lines at least. </p>
  
  <p>I tried the example with the countries (provided by the help button of the plugin) but it did not work.</p>
  
  <p>Country City<br/>
  United States   San Francisco<br/>
  United States   Chicago<br/>
  Mexico  Mexico City<br/>
  Mexico  Cancun<br/></p>
  
  <p>I tried with a property file : </p>
  
  <p>a    b<br/>
  c    d<br/></p>
  
  <p>It didn't work either.</p>
  
  <p>What did I miss?</p>
  
  <p>Can it be an encoding problem ?</p>
  
  <p>I used vi to create the file, is the tabulation ok?</p>
  
  <p>I couldn't find an answer in these threads : </p>
  
  <p><a href="https://stackoverflow.com/questions/21289870/populate-multi-select-parameter-extended-choice-parameter-plugin-in-jenkin">Populate &#39;Multi Select&#39; parameter (&#39;Extended Choice Parameter&#39; plugin) in Jenkins dynamically</a></p>
  
  <p><a href="https://stackoverflow.com/questions/21003160/extended-choice-parameter-plugin-multi-level-select">Extended Choice Parameter plugin Multi-Level Select</a></p>