Information

Full output of /ess version:

Server version: 1.13.2-R0.1-SNAPSHOT git-Paper-645 (MC: 1.13.2)
EssentialsX version: 2.17.1.15
LuckPerms version: 4.4.1
PlaceholderAPI version: 2.10.3
Vault version: 1.7.2-b107
Citizens version: 2.0.25-SNAPSHOT (build 1746)
EssentialsXChat version: 2.17.1.15

Server log:
There's no stacktrace but here you go.

haloflooder issued server command: /i dirt
haloflooder issued server command: /i grass
haloflooder issued server command: /i sign
haloflooder issued server command: /i glass

EssentialsX config: https://gist.github.com/haloflooder/5f96ba75c8d88dad1a15cebddd56d458

Details

Description
You can't give players/yourself a sign. Possibly other items relating to the 1.14 update but haven't checked yet.

Steps to reproduce
Run 1.13.2 server
Join server
Run /i sign command
???
Get Error: null in chat!

Expected behavior
I expected to get a sign. What a ripoff. 5/7 would use again

Screenshots

Temporary Fix

I temporarily fixed the issue by changing the sign portion of items.json from

  "sign": "oak_sign"

to

  "sign": {
    "material": "SIGN"
  }

or I could've just grab a sign from creative but that's like. more work man.

@md678685 Just updating this thread to say that it seems #2897 doesn't fix this yet. I feel like that's still a bug because in 1.13+ "sign" technically isn't in the game but it would make sense to give an oak sign as it would in versions prior to 1.13.

Expected behaviour:
Before 1.13: /i sign gives minecraft:sign
1.13 and later: /i sign gives minecraft:oak_sign

On the other hand, at the very least /i oak_sign works in the PR, whereas it seems not to on current versions.

This is fixed by d92f5ce - you can download the latest build from the downloads page.

Confirmed as well. Probably an issue resulting from signs having been renamed internally in 1.14.

@x0Z3ro0x If you can provide a list of other items you've found that do this as well, it may help the Essentials team.

I would be happy to. I am going through now and testing the items. I will have a full list for you by tonight.

Possibly related to #2732 - results in same error (as the OP) when attempting to spawn cactus green on 1.13.2

Confirmed, and there are a few more items as well that do this. Highly annoying. Your fix doesn't work for 1.14 here is the fix for 1.14.

Change item.json line number 9294 - 9297 to the following -

    "sign": {
        "material": "OAK_SIGN"
    },
	"oaksign": "oaksign",

I will fix any other items I find as well.

Alright, I know I am a bit late but that is because I wanted to be extremely thorough. I have went through your entire items.json twice now. From what I can tell, 1.14 changes the names behind the different wood type items. Signs, and Doors where the ones I found. Boats, Trap Doors, and pressure plates all works. Same with planks.

All other blocks function correctly.

EDIT:

Possibly related to #2732 - results in same error when attempting to spawn cactus green on 1.13.2

This is not present in 1.14. I just tested. Using /i cactus indeed provides a green cactus.

This appears to be a problem arising from the merged items.json which comes with EssentialsX 2.17.0 and above. (For those interested, it consists of entries from both genItemsFlat (deprecated, 1.13.x) and ItemDbGenerator (WIP, 1.13.x-1.14.x).)

The items.json from ItemDbGenerator for both 1.13.x and 1.14.x can be downloaded from here - note that it's missing many entries and isn't ready for production, but the entries present should be consistent and work on both 1.13 and 1.14.