[GH-ISSUE #4196] [Bug]: jq: error (at <stdin>:0): Cannot iterate over null (null) #2648

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opened 2026-02-27 03:04:21 +03:00 by kerem · 3 comments

kerem commented

2026-02-27 03:04:21 +03:00

Owner

Originally created by @AutumnFP on GitHub (Apr 30, 2023).
Original GitHub issue: https://github.com/GameServerManagers/LinuxGSM/issues/4196

User story

As a server admin, I want to the server to be Online

Game

Valheim

Linux distro

Ubuntu 20.04

Command

command: start

Further information

I successfully ran Valheim (vanilla) on my Linux system yesterday, I have had it working previously, but wanted a fresh start after installing FTP structures so uninstalled and reinstalled today.

After resolving an issue with Master server not showing as Listed, I'm now stuck on server STARTED but not ONLINE.

When I start the server (./vhserver st) I receive:

jq: error (at :0): Cannot iterate over null (null)

But then it does appear that the server is running, it's just stuck at Started and not Online (1hr+)

I'm comfortable that my vhserver.cfg file is okay and my port forwarding is working but I cannot work out what's pulling this error. Does anybody have any thoughts?

Relevant log output

Distro Details
=================================
Date:      Sun 30 Apr 14:31:32 UTC 2023
Distro:    Ubuntu 20.04.6 LTS
Arch:      x86_64
Kernel:    5.4.0-148-generic
Hostname:  valhalla
Uptime:    0d, 1h, 10m
tmux:      tmux 3.0a
glibc:     2.31

Server Resource
=================================
CPU         
Model:      Intel(R) Core(TM) i5-10500T CPU @ 2.30GHz
Cores:      12
Frequency:  3431.142MHz
Avg Load:   0.17, 0.33, 0.35

Memory     
Mem:       total  used   free   cached  available
Physical:  7.6GB  2.2GB  5.2GB  2.6GB   5.2GB
Swap:      4.0GB  0B     4.0GB

Storage
Filesystem:  /dev/mapper/ubuntu--vg-ubuntu--lv
Total:       98G
Used:        8.9G
Available:   84G

Network
IP:           0.0.0.0
Internet IP:  xx.xx.xx.xx

Game Server Resource Usage
=================================
CPU Used:  53.3%
Mem Used:  24.8%  1916MB

Storage
Total:        1.8G
Serverfiles:  1.5G

Valheim Server Details
=================================
Server name:      wholeneworld
App ID:           896660
Server IP:        0.0.0.0:2456
Internet IP:      xx.xx.xx.xx:2456
Server password:  ********
Game world:       vhserver
Save interval:    1800s
Master server:    listed
Status:           STARTED

vhserver Script Details
=================================
Script name:            vhserver
LinuxGSM version:       v23.2.3
glibc required:         2.15
Discord alert:          off
Email alert:            off
Gotify alert:           off
IFTTT alert:            off
Mailgun (email) alert:  off
Pushbullet alert:       off
Pushover alert:         off
Rocketchat alert:       off
Slack alert:            off
Telegram alert:         off
Update on start:        off
User:                   vhserver
Location:               /home/vhserver

Backups
=================================
No Backups created

Command-line Parameters
=================================
 ./valheim_server.x86_64 -name 'wholeneworld' -password ******** -port 2456 -world vhserver -public 1 -savedir '/home/vhserver/.config/unity3d/IronGate/Valheim' -logFile '' -saveinterval 1800 -backups 4 -backupshort 7200 -backuplong 43200 

Ports
=================================
Change ports by editing the parameters in:
/home/vhserver/lgsm/config-lgsm/vhserver

Useful port diagnostic command:
ss -tuplwn | grep valheim_server.

DESCRIPTION  PORT  PROTOCOL  LISTEN
Game         2456  udp       1
Query        2457  udp       1

Status:	STARTED

Steps to reproduce

./vhserver st

Originally created by @AutumnFP on GitHub (Apr 30, 2023). Original GitHub issue: https://github.com/GameServerManagers/LinuxGSM/issues/4196 ### User story As a server admin, I want to the server to be Online ### Game Valheim ### Linux distro Ubuntu 20.04 ### Command command: start ### Further information I successfully ran Valheim (vanilla) on my Linux system yesterday, I have had it working previously, but wanted a fresh start after installing FTP structures so uninstalled and reinstalled today. After resolving an issue with Master server not showing as Listed, I'm now stuck on server STARTED but not ONLINE. When I start the server (./vhserver st) I receive: > jq: error (at <stdin>:0): Cannot iterate over null (null) But then it does appear that the server is running, it's just stuck at Started and not Online (1hr+) I'm comfortable that my vhserver.cfg file is okay and my port forwarding is working but I cannot work out what's pulling this error. Does anybody have any thoughts? ### Relevant log output ```shell Distro Details ================================= Date: Sun 30 Apr 14:31:32 UTC 2023 Distro: Ubuntu 20.04.6 LTS Arch: x86_64 Kernel: 5.4.0-148-generic Hostname: valhalla Uptime: 0d, 1h, 10m tmux: tmux 3.0a glibc: 2.31 Server Resource ================================= CPU Model: Intel(R) Core(TM) i5-10500T CPU @ 2.30GHz Cores: 12 Frequency: 3431.142MHz Avg Load: 0.17, 0.33, 0.35 Memory Mem: total used free cached available Physical: 7.6GB 2.2GB 5.2GB 2.6GB 5.2GB Swap: 4.0GB 0B 4.0GB Storage Filesystem: /dev/mapper/ubuntu--vg-ubuntu--lv Total: 98G Used: 8.9G Available: 84G Network IP: 0.0.0.0 Internet IP: xx.xx.xx.xx Game Server Resource Usage ================================= CPU Used: 53.3% Mem Used: 24.8% 1916MB Storage Total: 1.8G Serverfiles: 1.5G Valheim Server Details ================================= Server name: wholeneworld App ID: 896660 Server IP: 0.0.0.0:2456 Internet IP: xx.xx.xx.xx:2456 Server password: ******** Game world: vhserver Save interval: 1800s Master server: listed Status: STARTED vhserver Script Details ================================= Script name: vhserver LinuxGSM version: v23.2.3 glibc required: 2.15 Discord alert: off Email alert: off Gotify alert: off IFTTT alert: off Mailgun (email) alert: off Pushbullet alert: off Pushover alert: off Rocketchat alert: off Slack alert: off Telegram alert: off Update on start: off User: vhserver Location: /home/vhserver Backups ================================= No Backups created Command-line Parameters ================================= ./valheim_server.x86_64 -name 'wholeneworld' -password ******** -port 2456 -world vhserver -public 1 -savedir '/home/vhserver/.config/unity3d/IronGate/Valheim' -logFile '' -saveinterval 1800 -backups 4 -backupshort 7200 -backuplong 43200 Ports ================================= Change ports by editing the parameters in: /home/vhserver/lgsm/config-lgsm/vhserver Useful port diagnostic command: ss -tuplwn | grep valheim_server. DESCRIPTION PORT PROTOCOL LISTEN Game 2456 udp 1 Query 2457 udp 1 Status: STARTED ``` ### Steps to reproduce ./vhserver st

kerem

2026-02-27 03:04:21 +03:00

closed this issue
added the
type: bug

command: backup

command: console

distro: Ubuntu

info: alerts

command: install

command: start

info: tmux

game: Valheim
labels

kerem commented

2026-02-27 03:04:22 +03:00

Author

Owner

@h3o66 commented on GitHub (May 2, 2023):

note: the jq error is not related to the server issue and probably not the main issue

@h3o66 commented on GitHub (May 2, 2023): note: the jq error is not related to the server issue and probably not the main issue

kerem commented

2026-02-27 03:04:22 +03:00

Author

Owner

@AutumnFP commented on GitHub (May 2, 2023):

Perfect, thanks for replying. I'll seek other answers :)

@AutumnFP commented on GitHub (May 2, 2023): Perfect, thanks for replying. I'll seek other answers :)

kerem commented

2026-02-27 03:04:22 +03:00

Author

Owner

@github-actions[bot] commented on GitHub (May 6, 2024):

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

@github-actions[bot] commented on GitHub (May 6, 2024): This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.