[MC-167027] "Error while deserializing" in console when converting a 1.14 world to 1.15

The bug

The following messages appear when a world is being upgraded from 1.14 to 1.15:

16:33:02.498
Error while deserializing minecraft:hay_pile
16:33:02.508
Error while deserializing minecraft:normal_tree
16:33:02.513
Error while deserializing minecraft:hay_pile
16:33:02.514
Error while deserializing minecraft:plain_flower
16:33:02.515
Error while deserializing minecraft:normal_tree
16:33:02.515
Error while deserializing minecraft:normal_tree
16:33:10.940
Error while deserializing minecraft:plain_flower
16:33:10.944
Error while deserializing minecraft:plain_flower
16:33:10.944
Error while deserializing minecraft:normal_tree
16:33:10.945
Error while deserializing minecraft:plain_flower
16:33:10.946
Error while deserializing minecraft:normal_tree
16:33:10.952
Error while deserializing minecraft:plain_flower
16:33:10.955
Error while deserializing minecraft:hay_pile
16:33:10.957
Error while deserializing minecraft:plain_flower
16:33:10.957
Error while deserializing minecraft:hay_pile
16:33:10.958
Error while deserializing minecraft:hay_pile

I am near a plains village, which is probably where these structures come from.

Linked issues

is duplicated by 1

MC-167508 Error while deserializing and unable to resolve blockentity Resolved

relates to 1

MC-163381 Exception loading structure piece with id minecraft:nvi Resolved

Attachments

bug.log

Comments 7

Asteraoth 2019-12-03T16:22:38Z

Confirmed for a 1.14 world with a taiga village.

John Smith 2019-12-11T00:12:45Z

Found this in my desert world too. Also applies to minecraft:cactus.

Furthermore, I got these other two errors in my server:

Ignored advancement 'minecraft:recipes/misc/sugar' in progress file .\world\advancements[REDACTED2].json - it doesn't exist anymore?
Unable to resolve BlockEntity for ItemStack: minecraft:air

Joris94 2019-12-12T04:44:42Z

Found these in 1.15

[Server] Server thread/WARN Error while deserializing minecraft:pine_tree
[Server] Server thread/WARN Error while deserializing minecraft:pumpkin_pile
[Server] Server thread/WARN Error while deserializing minecraft:spruce_tree
[Server] Server thread/WARN Error while deserializing minecraft:taiga_grass
[Server] Server thread/WARN Error while deserializing minecraft:normal_tree
[Server] Server thread/WARN Error while deserializing minecraft:plain_flower
[Server] Server thread/WARN Error while deserializing minecraft:hay_pile
[Server] Server thread/WARN Error while deserializing minecraft:sweet_berry_bush

Warren Liddell 2019-12-13T10:15:10Z

My world also encounters this, however my world was created using 1 of the 1.15 snapshots

electronicboy 2019-12-14T15:45:06Z

Looks like some ~~structures~~ features where removed down the line between 1.14 > 1.15 somewhere, these haven't been removed from chunks as they're loaded, however

John Baumbauer 2020-01-24T02:59:10Z

In am seeing [Server thread/Warn]: unable to resolve BlockEntity for ItemStatck: Minecraft:light_gray_banner. This repeats 8 times. I saw it in 1.15.1 and 1.15.2. Not sure what this means. everything looks fine in the world.

user-aa418 2021-08-23T00:08:20Z

Can confirm in 1.17.1 by updating a world from 1.14.4 to the latest version. I reproduced this issue while near a village:

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