As far as I know, you can fix that issue adding api-version: 1.13 in your plugin.yml file. There is no problem with previous versions.

Thank you.

This doesn't work as the dynmap is build for many versions of minecraft which don't support the 1.13 api. The same core code supports minecraft 1.11.2-1.16.3 spigot/bukkit/paper/forge/fabric and other unofficially supported server platforms so specifying an api version would break legacy platforms.

if forge/fabric and other unofficially supported server platforms didn't use the option api-version, they shouldn't read that option at all.

And versions < 1.13 will ignore it for sure.

I can't see the problem, have you already tried?

Older spigot servers do NOT ignore the line - this has been discussed and confirmed before...

Edit: I don't know that 1.13 was tried - will confirm this vs 1.12, but we had to pull the last 'clever' PR that added it and broke hundreds of existing server.

Hmmm, strange, but OK, thanks for clarification — for some reason I remembered that older servers ignored this line

I will revisit this - I'm pretty sure the last time someone jammed it in, it might have been 1.14 or 1.15 - sorry, the behavior of that flag is irritating, as things do work, and there is really no reason to be fussing about it, much less slowing down startup.

In my case adding this line increased startup speed from 25s to 15s (~60%!) with 60 plugins including the dynmap.. Considering how often I have to restart my test server during a working day for development and testing — reducing the starting time is a huge time saver and therefore for me (and I think I am not alone) this is very important.

Thanks

omg, adding api-version: 1.13 to the plugin.yml of downloaded dynmap jar don't break anything on Paper 1.16.5 server. It works perfectly and now starts up much faster..

Older servers will just ignore this line, newer can start faster.. What are the problems, developer?
@mikeprimm @FedUpWith-Tech

@FedUpWith-Tech & @mikeprimm, this warning slows down the server starting time every time for 5-15 seconds.. :c
Maybe you should build two versions of the dynmap, one for versions >= 1.13 and one for <1.13?

@FedUpWith-Tech & @mikeprimm, this warning slows down the server starting time every time for 5-15 seconds.. :c
Maybe you should build two versions of the dynmap, one for versions >= 1.13 and one for <1.13?

I agree with that