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[Bug]: Valheim Server with LGSM installed BepinEx and valheimplus not starting #4641
Description
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: dlopenSteps to reproduce
Install BepinEx and ValheimPlus via mods-install command
Attempt to start server either via ./vhserver-start or ./vhserver-monitor
Reacted by Gemma Lynn
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mikencyber commentedon Dec 18, 2024
Has anyone found any more info on this?
TheOneHyer commentedon Aug 12, 2025
Bumping
triuk commentedon Sep 16, 2025
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
dgibbs64 commentedon Nov 1, 2026
Thanks for the report. I retested Valheim with BepInEx on the current release: it starts, BepInEx loads and there are no preload errors. The BepInEx install fix is #4939, released in v26.2.0. Closing as completed. If you still see this on the latest version, please open a new issue with your current logs.