Information

Full output of /ess version:

21.07 15:05:00 [Server] INFO Server version: 1.8.8-R0.2-SNAPSHOT MedievalPvP (MC: 1.8.8)
21.07 15:05:00 [Server] INFO EssentialsX version: 2.18.0.0
21.07 15:05:00 [Server] INFO GroupManager version: Pre2.14.1.3 FINAL (Phoenix)
21.07 15:05:00 [Server] INFO PlaceholderAPI version: 2.9.1
21.07 15:05:00 [Server] INFO Vault version: 1.5.6-b49
21.07 15:05:00 [Server] INFO Citizens version: 2.0.16-SNAPSHOT (build 1267)
21.07 15:05:00 [Server] INFO EssentialsXChat version: 2.18.0.0
21.07 15:05:00 [Server] INFO EssentialsXProtect version: 2.18.0.0
21.07 15:05:00 [Server] INFO EssentialsXAntiBuild version: 2.18.0.0
21.07 15:05:00 [Server] INFO EssentialsXSpawn version: 2.18.0.0

Server log: https://gist.github.com/Nrc0611/d589120223d536a925943b4b732b99c0

EssentialsX config: https://gist.github.com/Nrc0611/8feb9e70d3e9df8f63010eea89087440

Details

Description
I originally discovered this when testing my kits, they no longer work because of the potions. There simply is no 1.8 potion support in the newest version of EssentialsX.

Steps to reproduce
Simply type /i strengthpotion on any 1.8.8 server and it will throw the error.

Expected behavior
You receive a strength potion.

Screenshots
Doesn't tell you anything ingame.

Closing as a duplicate of #2867.

Hey, I figured out the issue to this problem, it works fine if you use 1.8.8-R0.1, because in the code it says this: https://pastebin.com/s223dw82
This is in the file: Essentials/src/com/earth2me/essentials/Essentials.java

I was wondering if you guys could change the part where it says VersionUtil.v1_8_8_R01 and change it to VersionUtil.v1_8_8_R02. You would have to add in a VersionUtil for v1_8_8_R02 tho.

Or just make it so it checks if its lower than 1.9 instead of isLowerThanOrEqualTo

@Nrc0611 Did it work in versions prior to 2.18?

I don't know, I just switched to EssentialsX as many developers have stopped supporting Essentials. Honestly love EssentialsX fixed a lot of my teleportation issues. I simply only have errors with Spawn Eggs and Potions, due to the fact that I am on 1.8.8 R02 which should be considered under the legacy versions of spawn eggs and potions but it currently is not.

I downloaded 1.8.8 R01 to test and see if it works and it works great but my custom jar is on 1.8.8 R02, so I am hoping there is a way to switch it to check if the version is lower than 1.9 and then use the Legacy versions.

That is what I would need to be changed for it to work properly.

Doesn't appear to be an issue -- R2 doesn't exist in CraftBukkit/Spigot/Paper, which are the server implementations that EssentialsX supports.

Latest version of Paper for 1.8.8:

[15:00:17 INFO]: This server is running CraftBukkit version git-PaperSpigot-"4c7641d" (MC: 1.8.8) (Implementing API version 1.8.8-R0.1-SNAPSHOT)

You're running a StellarSpigot, which modified the version number to something not in the spigot ecosystem (There is no official R02). I could add a fix which would account for this but this is StellarSpigot messing with the version number when it shouldn't. Not really an essentials problem

Would it be possible to then just change isLowerThanOrEqualTo to just isLowerThan 1.9? I am currently using Stellar Spigot, so I can see if he will change it to R01 maybe

I did not realize stellar changed that.

Some people with stellar are gonna help me, thanks had no idea Stellar changed that.

Yeah, definitely a Stellar problem then. Forked server implementations should not be randomly changing the version string from the upstream project.