[Bug]: Valheim Server with LGSM installed BepinEx and valheimplus not starting

[ijyt]

User story

I want the server to run

Game

Valheim

Linux distro

Ubuntu 22.04

Command

command: monitor

Further information

The server isn't able to start, and monitoring fails.

Relevant log output

[ INFO ] Starting vhserver: BepInEx install detected, applying start exports
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
[ .... ] Starting vhserver: Leafy Pines
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object 'libdoorstop_x64.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
touch: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
tmux: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
sleep: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
readlink: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
basename: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
date: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
[  OK  ] Starting vhserver: Leafy Pines
sleep: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
date: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
date: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
[  OK  ] Starting vhserver: Leafy Pines
sleep: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
date: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen

rm: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
readlink: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
basename: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
whoami: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
readlink: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
basename: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
whoami: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
date: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen
date: symbol lookup error: ./doorstop_libs/libdoorstop_x64.so: undefined symbol: dlopen

Steps to reproduce

Install BepinEx and ValheimPlus via mods-install command Attempt to start server either via ./vhserver-start or ./vhserver-monitor

[mikencyber]

Has anyone found any more info on this?

[TheOneHyer]

Bumping

[triuk]

LGSM mod handling is unreliable. A more effective method for setting up and maintaining a Valheim server with mods (as of September 2025) is available here: https://github.com/triuk/Valheim-Mod-Manager/tree/main