Errors such as error: cannot find symbol and error: package AnimationController does not exist

Started by Vladius120 on

Topic category: Troubleshooting, bugs, and solutions

Joined Jun 2024
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Errors such as error: cannot find symbol and error: package AnimationController does not exist

There are slightly less than 1700 elements in the mod. Everything worked fine, but suddenly my (weak) laptop turned off. After that, I went into MCreator, decided to start the world again, but I got errors. From them, I realized that there is an error: package AnimationController does not exist and error: cannot find symbol. When I set the f:err filter (in the search), then mobs with custom animations and 3 elements from the Just Enought Recipes plugin are shown. But in the console there are about 100 errors (written at the end). All the advice I could see in similar questions did not help.

Joined Oct 2022
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Your workspace probably got…
Thu, 04/24/2025 - 19:33

Your workspace probably got corrupted. Do you have any saves?

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It happened to me once and I…
Thu, 04/24/2025 - 19:34

It happened to me once and I had to remake like 200 JEI recipes because my power went out

 

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Yes, I had saves, and they…
Thu, 04/24/2025 - 19:43

Yes, I had saves, and they were already loaded into mcreator (I wanted to make an April Fools' version of the mod, but for some reason I didn't want to). They also had this error. It feels like the plugins are to blame. Okay, let's say there are no saves.

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In that case, what can be…
Thu, 04/24/2025 - 20:02

In that case, what can be done? I don't know... maybe I can go somewhere else? Or... I don't know...

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I realized that there is an…
Thu, 04/24/2025 - 20:15

I realized that there is an error: package AnimationController does not exist and error: cannot find symbol.

there are about 100 errors

both things are probably caused by AnimationController, if you've been using a plugin for animations then you could maybe try deleting mcreator cache (not sure if deleting mcreator cache works the way i think it does, it can make your workspace take longer to load the first time but it usually helps) and the plugin, then reinstall the plugin and then use "Regenerate code and build"

 

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How do I clear the cache? I…
Fri, 04/25/2025 - 13:21

How do I clear the cache? I deleted the build folder, the plugin, regenerated the code, but it still gives an error.

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I tried several more methods…
Fri, 04/25/2025 - 15:37

I tried several more methods. I deleted half of the folders (I didn't delete the important ones), still an error. After that I reinstalled the plugins, it didn't help.

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The mod is dear to me and I…
Fri, 04/25/2025 - 15:38

The mod is dear to me and I don’t want to abandon it.

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only thing i can think of is…
Sat, 04/26/2025 - 02:41

only thing i can think of is checking if those 2 types of mod elements work on other workspaces, and if not you could try changing mcreator version to 2025.1 or 2024.3

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Okay, I'll try an earlier…
Sat, 04/26/2025 - 04:07

Okay, I'll try an earlier version, it's just that the necessary plugins haven't been released for 2025.1, or I still can't find them.

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It says that I can't open a…
Sat, 04/26/2025 - 04:11

It says that I can't open a new version project in an old version of MCreator.

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it's just that the necessary…
Sat, 04/26/2025 - 06:49

it's just that the necessary plugins haven't been released for 2025.1

some plugins for 2024 work on 2025, but you have to change their supported version inside plugin.json

 

It says that I can't open a new version project in an old version of MCreator.

i was saying that you should first try making a new project (in 2024.4), then adding the same things that made your mod crash (in this case, you should use geckolib and JEI), if it does work then it's your workspace's fault. if it doesn't work then you could try changing mcreator versions and then try this again 

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Changed. Managed to launch…
Sat, 04/26/2025 - 07:05

Changed. Managed to launch on 2025.1.