title: POEDIT- Show Error: a format specification for argument 1 doesn't exist in 'msgstr'
body: <p>I have a the code follow to write in <code>functions.php</code> of WordPress theme:</p>
  
  <pre><code>&lt;?php
  if(!function_exists('mytheme_entry_meta')){
      function mytheme_entry_meta(){
          if(!is_page()){
          ?&gt;
              &lt;div class="entry-meta"&gt;
                  &lt;?php printf(__('&lt;span class="author"&gt;Posted by %1$s&lt;/span&gt;', 'mytheme'), get_the_author()); ?&gt;
                  &lt;?php printf(__('&lt;span class="date-pulished"&gt;at %1$s&lt;/span&gt;', 'mytheme'), get_the_date()); ?&gt;
                  &lt;?php printf(__('&lt;span class="category"&gt;in %1$s&lt;/span&gt;', 'mytheme'), get_the_category_list(',')); ?&gt;
                  &lt;?php if(comments_open()){ ?&gt;
                  &lt;span class="meta-reply"&gt;
                      &lt;?php comments_popup_link(
                          __('Leave a comment','mytheme'),
                          __('One comment','mytheme'),
                          __('% comments','mytheme'),
                          __('Read all comments','mytheme')
                      ); ?&gt;
                  &lt;/span&gt;
                  &lt;?php } ?&gt;
              &lt;/div&gt;
          &lt;?php
          }
      }
  }
  ?&gt;
  </code></pre>
  
  <p>After I use POEDIT application to translate to Vietnamese language. But POEDIT show </p>
  
  <p><code>Error: a format specification for argument 1 doesn't exist in 'msgstr'</code></p>
  
  <p>And position error in <code>% comments</code>. Please see 2 below images:</p>
  
  <ul>
  <li><strong>Image 1</strong>: The position show error
  <a href="http://i.stack.imgur.com/0rhxA.png" rel="nofollow">The position show error</a></li>
  <li><strong>Image 2</strong>: After I click Save button, show message error.
  <a href="http://i.stack.imgur.com/3FVJK.png" rel="nofollow">After I click Save button, show message error</a></li>
  </ul>