[TYPO3-dev] Plugin blank after upgrade to Typo3 4.0 [SOLVED]

[Neil Bertram]

Francois Suter wrote:
> Hi,
> 
>> I'm having the same issue randomly with certain TYPO3 4.0 installs. 
>> Some plugins will render fine and others won't even include the 
>> _pi1.php script at all. Shifting the plugins to another installation 
>> often causes it to work.
> 
> 
> I found the solution. It wasn't directly related to my extension, but to 
> my update process from Typo3 3.8.1 to 4.0. Some extensions have been 
> "promoted" to system extensions, including css_styled_content.
> 
> I din't pay attention to that, which meant that my v4.0 install was 
> still using the local copy of css_styled_content. Removing it (both via 
> the EM and physically from the server) allowed me to install the newest 
> (system) version. After that my extension worked perfectly with Typo3 v4.0.
> 
> It's a rather sneaky problem, since when you try getting a new version 
> of such extensions from the TER, you don't find them (which is the whole 
> point, but it still causes some confusion). So you think your install is 
> up to date, but in fact it isn't.
> 
> Cheers
> 

This didn't fix my problem. I already had css_styled_content as a system 
extension from the 3.8.0 upgrade. I have three parallel installations of 
TYPO3 4.0 final, all upgraded from 3.8.0 at some point, and two 
extension, one I wrote, and tt_news only work on two of the three (the 
same two) while most frontend plugins render fine.

Interestingly the page module is referring to my tt_news plugin as 
"Plugin 9". This is the output on the frontend for tt_news (a SEARCH type):

	<!--  CONTENT ELEMENT, uid:60/list [begin] -->
		
		<!--  Plugin inserted: [begin] -->

			
		<!--  Plugin inserted: [end] -->
			
	<!--  CONTENT ELEMENT, uid:60/list [end] -->

As you can see, it doesn't know what plugin it is, and it's not 
rendering it either. If I remove the tt_news plugin from the page, this 
block goes away, reinstalling it makes it come back exactly the same. 
I've cleared the cache and everything!

This is tt_news 2.2.40 (I don't think released yet), but as I mentioned, 
this isn't the only plugin that does it. I have a very simple plugin 
which I wrote that does the same thing, and works on the TYPO3 install 
(also 4.0) that I kickstarted it on.

I've also tried starting a new site root using one of the (pretty 
horrible) default templates to see if it would render then, same result, 
so it's not my typoscript.

Help!


Neil