Hello, I’m trying to upload a module and am getting an API 408 error. I’m not sure what’s wrong this time. File size maybe?
How large is the file?
File size is 300.8 MB ![]()
It’s slightly over the size limit. Have you already removed unused images?
I have. I can try to get it a little smaller. What’s the file size limit?
The current limit is 300MB.
If you’ve already removed all the unused images, there are two things I’d suggest:
- Run a PNG optimizer such as optipng over all the PNGs.
- Rezip the module at maximum compression.
If neither of those get you under 300MB, let me know.
Hey Joel, I got file size down to 260mb. But I’m still getting this stupid API 408 error. I’ve double-checked the version number matches the file name. Is there something else I could be doing wrong? Feels like this new website is constantly fighting me…
Is there somewhere I can download the module so I can see it? (Note that I might be slow to act in the next few days because I’ll be traveling.)
Thanks Joel. The file is on my OneDrive: Microsoft OneDrive
I took a quick look at the module. I don’t see anything obviously wrong. I’m still tied up for a few more days so can’t really dig into this further until then. Try uploading the module again.
Thanks for responding. I tried again this evening. Still getting the same error. I signed out of VASSAL, re-signed in. That didn’t work either. I’m out of ideas…
I will get back to this, but maybe not for a few days due to my father having had an operation yesterday.

