Been using the excellent "savetiddlers" plugin to handle my old TWC files. But often when I open the file afresh I get the error message:
savetiddlers has detected that another tiddlysaver called savetiddlers is install. Currently only one saver is supported therefore - savetiddlers will not activate
Bit of a pain, but there is a work-around I use.
Open up the TW and scroll to the very bottom. Delete the <DIV> that contains:
<div id="tiddlyfox-message-box" style="display: none;" data-message-box-creator="savetiddlers"></div>
save it and you're good to go again... until the next time you close FireFox and reload your TW. Rinse and repeat.
Not sure if it's just me, or is there a bug inherent in the plugin when dealing with TWC?