Hello!

This bug report might be a bit cheeky, as I'm using a server that I don't believe is supported by Dynmap, but I'm posting anyway just encase I'm missing something that could easily be fixed.

I've been hosting a paper mc server for a long while now and have had no issues with Dynmap whatsoever. The server i host relies on the use of Towny, as well as dynmap towny. We recently decided that we would really like to see mods with the server, and after a while of searching, i came across Mohist, which integrates paper and forge together to run mods alongside plugins.

When i try to add Dynmap to the plugins folder however, i get the following error when starting up the server in the console
[12:22:09 ERROR]: [dynmap] Cannot find [Lnet.minecraft.server.BiomeBase; [12:22:09 ERROR]: [dynmap] Cannot find net.minecraft.server.BiomeStorage [12:22:10 ERROR]: Error initializing dynmap - bukkit version incompatible! initializing dynmap v3.2-beta-2-483 (Is it up to date?) java.lang.IllegalArgumentException: Error initializing dynmap - bukkit version incompatible! at org.dynmap.bukkit.helper.BukkitVersionHelperGeneric.<init>(BukkitVersionHelperGeneric.java:166) ~[?:?] at org.dynmap.bukkit.helper.v116_4.BukkitVersionHelperSpigot116_4.<init>(BukkitVersionHelperSpigot116_4.java:31) ~[?:?] at org.dynmap.bukkit.Helper.getHelper(Helper.java:54) ~[?:?] at org.dynmap.bukkit.DynmapPlugin.onLoad(DynmapPlugin.java:821) ~[?:?] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.loadPlugins(CraftServer.java:391) ~[forge:7e29f765-296df566-9fb885e8] at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:208) ~[?:?] at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:728) ~[?:?] at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:271) ~[?:?] at java.lang.Thread.run(Thread.java:829) [?:?]

Being curious, I decided to set up a fresh Mohist server and do a bit of experimenting. I found that even without other plugins, the dynmap still will not work correctly, and produces this error. Furthermore, i found that the forge version of Dynmap actually appears to be working correctly, however as mentioned, i'm unable to use this version of Dynmap as i doesn't seem to be compatible with Dynmap. I've tried using multiple version of Dynmap and Mohist to no avail. If this is something i would be able to fix on my own, please let me know. Thanks.

Mohist version: mohist-1.16.5-680-server (tried other versions)
Dynmap version: Dynmap-3.2-beta-2-spigot (tried other versions)

If a more detailed log is required, please let me know.
Thankyou!

Mohist isn't supported, per se. If it works at all, it'd be the Forge version that'll work. The helper modules are very particular to the Spigot/Paper codebase, so will not work for variants that don't preserve the internal package and symbols from the Spigot/Paper versions.