The error message is actually very explicit and helpful. The message is telling you that it cannot find an export template at the path Tinderbook:Users:mark:Desktop:Tiddly:export templates:tiddly – which is probably a path that does not exist on your machine.
As the Tinderbox file in the template says, the file was made for Tinderbox 3.5.1**. That’s very old. In 3.5.1, Tinderbox used external export template files. Long since 3.5.1 (around 5.0) the concept of external export templates was replace by internal templates in notes. It is usually very simple to convert from the old method to the new.
Just create a container “/Templates” in your Tinderbox 7 file, open the external file and copy its contents to a new note inside “/Templates”. Make that new note into a template. Then locate the notes that were looking for the external template and change them to point to the internal template.
The TiddlyWiki template .dmg included the template file in a folder inside the .dmg. So this is easy to fix.
I did part of the work for you in the attached Tinderbox file. Be aware of a few things – the template (that I inserted into the file for you) uses deprecated syntax. It will work, but it’s not compliant with current HTML or current Tinderbox export codes – so you’ll need to do your research to figure that out.
Also, the TiddlyWiki standard has moved on considerably since the original file was posted to the file exchange 12 years ago. So, you’ll need to find the 3rd party TiddlyWiki standard and update your template accordingly.
Tinderbox to TiddlyWiki for Tinderbox 7.tbx (486.4 KB)
** One might guess, from the dates in the Tinderbox File Exchange, and the content of most of the files, that these suggested files are from an earlier part of Tinderbox’s life and might not work here in 2018 exactly as originally designed. Nevertheless, the Exchange files are fascinating starting points and worth the time needed to update them for Tinderbox 7+. Certainly that’s sometimes an effort for more experienced readers; something to aspire to.