one click extension update won't see update and gives error. - Joomla! Forum - community, help and support

i'm working on getting extensions work extension updater.

i got lines in installer xml

code: select all

<updateservers>
      <server type="extension" priority="1" name="content - display plugin code"><![cdata[http://www.pages-and-items.com/updateserver.php?ext=displayplugincode&]]></server>
   </updateservers>

i got file xml on server, seems output right stuff.

code: select all

<?xml version="1.0" encoding="utf-8"?>
<updates>
   <update>
      <name>content - display plugin code</name>
      <description>plugin display plugin code, without executing code</description>
      <version>1.0.2</version>
      <infourl title="infourl_title">http://www.pages-and-items.com/extensions/display-plugin-code</infourl>      
      <downloads>
         <downloadurl type="full" format="zip">http://www.pages-and-items.com/downloads/plg_display-plugin-code_v1.0.2.zip</downloadurl>
      </downloads>
      <targetplatform name="joomla" version="2.5"/>
      <element>plg_displayplugincode</element>
      <type>plugin</type>
      <folder>content</folder>
   </update>
   <update>
      <name>content - display plugin code</name>
      <description>plugin display plugin code, without executing code</description>
      <version>1.0.2</version>
      <infourl title="infourl_title">http://www.pages-and-items.com/extensions/display-plugin-code</infourl>      
      <downloads>
         <downloadurl type="full" format="zip">http://www.pages-and-items.com/downloads/plg_display-plugin-code_v1.0.2.zip</downloadurl>
      </downloads>
      <targetplatform name="joomla" version="3.0"/>
      <element>plg_displayplugincode</element>
      <type>plugin</type>
      <folder>content</folder>
   </update>
</updates>

i compared 8 other updaters seem work fine. (althou found differences in use of <client> tag, different ways element writen , more. tried combinations.)

i searched hours , found http://docs.joomla.org/deploying_an_update_server
i studied every letter of it, can not find goes wrong.

the update not shown in list , error in php error log:

php notice: trying property of non-object in c:\sitename\libraries\joomla\updater\adapters\extension.php on line 193

when uninstall extension , purge cache , check updates there no error. when install extension , check updates, error there.

the extension version 1.0.0 , update 1.0.2 (i tried 1.0.1 , 2.0.0, in case).

how updater working?

i retried , of sudden works....
uuuuhhhhhhhh. i'll be...

still gives error.