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"Could not find or load main class @user_jvm_args.txt" when launching forge server.

Posted April 21, 20223 yr

OS: Ubuntu 20.04
Java: openjdk-17-jre
Error message: Could not find or load main class @user_jvm_args.txt

Hey, my forge server wont launch anymore through the run.sh script after a sudden rootserver outage and reboot.

I tried force-reinstalling the openjdk but that didn't seem to solve the issue. Any suggestions on how to get the forge server back running?

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April 21, 20223 yr

Author

3 minutes ago, diesieben07 said:

That error message is indicate of a wrong Java version. Java 17 is needed for 1.18.

Just to clear that up, the forge server was running fine for days until that outage happend.

Printing java -version outputs:

openjdk version "1.8.0_312"
OpenJDK Runtime Environment (build 1.8.0_312-8u312-b07-0ubuntu1~20.04-b07)
OpenJDK 64-Bit Server VM (build 25.312-b07, mixed mode)

Quote

April 21, 20223 yr

Author

6 minutes ago, diesieben07 said:

Well, Java 17 is required for 1.18.

Not the type of help i expected but installing the oracle-java17-installer and oracle-java17-set-default packages solved the issue. Still doesn't explain why it worked before with the openjdk.

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April 21, 20223 yr

Author

shrugging-european-woman-wearing-blue-sh

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5 months later...

September 29, 20222 yr

Having the same issue, but I have jdk 17.0.4. What am I missing?

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Trying to boot MC Eternal 2 Server, works on linux not on Windows 11: Jvm args error

Make sure you are using Java 17 JDK

In the start script, replace the word "java" with the java 17 path (javaw.exe) and put it into quotation marks

By TileEntity · 2 hours ago2 hr
NEED HELP ASAP - Failed to load datapacks, can't proceed with server load. You can either fix your datapacks or reset to vanilla

There are client-side-only mods in your server - start with removing justenoughbreeding

By TileEntity · 2 hours ago2 hr
NEED HELP ASAP - Failed to load datapacks, can't proceed with server load. You can either fix your datapacks or reset to vanilla

Hey there, I have a big modpack I'm trying to run that I've put together with two other rather large communities- we have a grand opening scheduled for next week so it's really important that this gets solved ASAP.

The game runs fine in singleplayer, but when trying to run as a server using a hosting website, I've run into quite a massive error log. I've whittled it down to this point- I'm currently not sure what to do, as I believe the main error is relating to the datapack message, but I don't know for sure. Removing the datapack folder doesn't change the message either.

https://mclo.gs/2aTdXII

If the fix is something very simple, I apologize. I'm not too experienced with hosting websites and running large modpacks like this on a server.
I'm also not completely sure of which mods are client-only- a large handful of which are already disabled but I could be missing some. I just don't know which ones they would be, if that's causing the issue.

By nyxxiea · Posted 7 hours ago7 hr
Orbital strike cannon fishing rod mod

ok i have a early build of the mod there is lots more to come trust me @ggggggg453
https://drive.google.com/file/d/1q1L5fXqNy3aclCk74K0FeAn9FmJ15Byx/view?usp=sharing

its for forge 1.20.1 and go to the ingame mods tab and read the description for info

or just type in chat /orbital nuke 20 1
or /orbital stab 300 1

By FoxyWoxy · 8 hours ago8 hr
Trying to boot MC Eternal 2 Server, works on linux not on Windows 11: Jvm args error

Okay so I was trying to boot an MC Eternal 2 Server, I downloaded the latest server files from Curse which include a 47.4.2 jar. Whenever I install the server files into my folder and attempt to boot the server, I get Error: Could not find or load main class @user_jvm_args.txt in the cmd and nothing else. Now, MCE2 does have its own custom args so I deleted those and tried simple xms and xmx args, but that didn't let the server boot either. I assumed that maybe my java version was out of date, but I have the latest version of Java Installed and I even installed the Java 17 SDK for good measure just in case Java 25 is too recent for the pack. Still no avail. I tried running a vanilla 1.20.1 and it boots just fine, but for some reason the forge server still won't boot. Does anyone know anything I could try?

By Linksapprentice · Posted 12 hours ago12 hr

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"Could not find or load main class @user_jvm_args.txt" when launching forge server.

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Trying to boot MC Eternal 2 Server, works on linux not on Windows 11: Jvm args error

NEED HELP ASAP - Failed to load datapacks, can't proceed with server load. You can either fix your datapacks or reset to vanilla

NEED HELP ASAP - Failed to load datapacks, can't proceed with server load. You can either fix your datapacks or reset to vanilla

Orbital strike cannon fishing rod mod

Trying to boot MC Eternal 2 Server, works on linux not on Windows 11: Jvm args error

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