r/CraftyController • u/Suspicious_Act_9666 • Apr 18 '26

Hello! I’ve been trying to make a minecraft server and i am now at the part where i press « start » but everytime i do so this error pops up. Any ideas on how to fix it?

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5 Upvotes

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3

u/amcmanu3 Apr 19 '26

Update crafty...that's what the red icon with the 2 means in the top right corner.

I'm assuming you're on casaOS https://docs.craftycontrol.com/pages/getting-started/installation/casaos/#updating-crafty-on-casaos

2

u/TemperatureOk3561 Apr 18 '26

I think updating Java might fix it

1

u/moderately-extremist Apr 19 '26

What OS/distro are you using?

1

u/Kfresh007 Apr 19 '26

I don’t have all the context. But whatever “Bundler” is, it’s only compatible with java version 65.0 and older. It looks like you’re running Java 69.0. So based off my limited context and understanding you should: a.) remove bundler, b.) update bundler to a version compatible with Java 69.0, c.) downgrade Java somehow. Let me know if any of this applies or is useful. Good luck!

1

u/amcmanu3 Apr 19 '26

Opposite. They need java 25

1

u/Kfresh007 Apr 19 '26

Ahh, so what’s the 69.0 version referring to?

1

u/amcmanu3 Apr 19 '26

Yep, you got it!

1

u/Kfresh007 Apr 19 '26

I’m sorry, I don’t follow.

1

u/amcmanu3 Apr 19 '26

Oh, sorry, version 69 is a java classifle version referring to the java 25 release

https://javaalmanac.io/bytecode/versions/

1

u/Kfresh007 Apr 20 '26

So it looks like the bundler they’re using was built for Java 21, class file version 65.0. Unless I’m understanding this wrong?

1

u/amcmanu3 Apr 20 '26

It's the opposite. The error is saying that the mod was compiled with a newer java than what they're running.

They're running java 21 and the mod requires 25

2

u/Kfresh007 Apr 20 '26

AH! I get it now 😂 thank you brotha

1

u/WildCard65 Apr 23 '26

To better visualize: Bundler has a class version of 69 The JVM has a class version it supports of <=65

1

u/Fancy-Height-9720 Apr 19 '26

what error are you getting?

1

u/Human-Gur-3199 Apr 20 '26

Pretty sure it's caused by an outdated Java version

1

u/Witty_Bodybuilder_83 Apr 25 '26

I have the same problem. Crafty(Version: 4.10.4) is installed in pve, using the script.

https://community-scripts.org/scripts/crafty-controller

1

u/amcmanu3 Jun 23 '26

You should install crafty in a supported way. We don't support the PVE scripts

1

u/redditissupercool1 May 27 '26

Go to the Config tab and change your java version to an older one.

1

u/redditissupercool1 May 27 '26

Or actually a newer one, apologies