Hi,

Please look at the following fix:
Code:
diff --git a/extjs/ext-4.0.0/src/direct/PollingProvider.js b/extjs/ext-4.0.0/src/direct/PollingProvider.js
index 7e22ba0..e04c95c 100644
--- a/extjs/ext-4.0.0/src/direct/PollingProvider.js
+++ b/extjs/ext-4.0.0/src/direct/PollingProvider.js
@@ -69,13 +69,13 @@ Ext.define('Ext.direct.PollingProvider', {
              * @event beforepoll
              * Fired immediately before a poll takes place, an event handler can return false
              * in order to cancel the poll.
-             * @param {Ext.direct.PollingProvider}
+             * @param {Ext.direct.PollingProvider} provider
              */
             'beforepoll',            
             /**
              * @event poll
              * This event has not yet been implemented.
-             * @param {Ext.direct.PollingProvider}
+             * @param {Ext.direct.PollingProvider} provider
              */
             'poll'
         );