this post from October did help me:

Message: 6
Date: Mon, 13 Oct 2008 20:06:33 +0200
From: Alex Ross <tm-alex@rosiba.com>
Subject: [TxMt] Re: Latex Bundle Stop to work on MacTex 2008 installed
To: TextMate users <textmate@lists.macromates.com>
Message-ID: <601AFE08-73AB-402B-98F9-BD4DABC66805@rosiba.com>
Content-Type: text/plain; charset=WINDOWS-1252; format=flowed;

On Oct 13, 2008, at 7:07 PM, Jose Lobato wrote:


I completely removed the MacTex 2007 and install 2008. Once this is  
done it
stops working when I try to build (cmd+R) Get a big red mesage:

Error: Could not open to check for packages
This is most likely a problem with TM_LATEX_MASTER

The text is over a small message that says something like (I have  
read it):/bin/sh: kpsewich: cdmmarck not open

( please do not trust this last sentece because as I say I can not  
see it

So, on: echo $PATH I have:

TextMate no longer sources the shell profile so you need to set PATH  
in TextMate's preferences.  Just copy the above PATH to TextMate's  
Shell Variables preference pane and all should be working again.


I did copy the results from PATH into the TM Shell Variables PrefPane and it seems to work ok now.
Sorry for this little flury of emails...


On 16-Oct-08, at 2:00 PM, textmate-request@lists.macromates.com wrote:

Message: 4
Date: Wed, 15 Oct 2008 22:00:09 +0200
From: Alex Ross <tm-alex@rosiba.com>
Subject: [TxMt] Re: problem running latex after svn up
To: TextMate users <textmate@lists.macromates.com>
Message-ID: <FDE0695F-B385-4188-A09C-341AC2CD0B2B@rosiba.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes

On Oct 15, 2008, at 9:43 PM, Claus wrote:

after svn updating all my *.tmbundle, including the latex bundle,  
after running a previously working latex-project, I got after cmd-R:

/tmp/temp_textmate.hXj0XQ:3:in `require': no such file to load -- / 
process (LoadError) from /tmp/temp_textmate.hXj0XQ:3

I looked around, and found that likely I have to also svn up the  
"Support Folder":
cd /Library/Application\ Support/TextMate
svn co http://macromates.com/svn/Bundles/trunk/Support

so I did, however, when I run
I get
/Users/clausman/Library/Application Support/TextMate/Support
What have you got in this directory?  You can just delete /Users/ 
clausman/Library/Application Support/TextMate/Support and I bet things  
will start working.