Valheim console lines that look like errors but are normal

ValheimUpdated Oct 22, 20264 min read

A Valheim server prints a lot at every start, and some of it reads like an error. The lines below appear on healthy servers that start, load the world and accept players. If the badge says Online and your friends can join, you can ignore them.

Normal lines

Line	When you see it
`The referenced script on this Behaviour (Game Object '<null>') is missing!`	Many times at every start.
`AsyncResourceUpload failed.`	At start.
`Could not find video decode shader pass ...` and `Could not find material Hidden/VideoDecode`	At start. The server has no screen.
`The shader ... is not supported on this platform!` and `The image effect ... has been disabled`	At start, for the same reason.
`Unable to load player prefs`	On the first start.
`Failed to play intro cinematic`	At start.
`Console: type "help" - for commands`	At start. The server does not read typed commands.
`Failed to place all <Location>, placed 17 out of 20`	While a new world is generated.
`Location ... took more than 0.5 seconds to place`	While a new world is generated.
`Authentication:k_ESteamNetworkingAvailability_Waiting`	At start, before Steam is ready.
A short message that a Steam interface was used before Steam was ready	At start.
`flock ... failed. errno = 13`	At start.
`src/clientdll/cminterface.cpp ... !BLoggedOn()`	At start.
`New session server "My Server" that has join code , now 0 player(s)`	Just before the join code exists.
`[playnhost] mods: no mod list yet, nothing to apply`	On a modded server type before you add any mod.

Lines that are real problems

Line	What it means
`Valheim will not start: ...` or `Error bad password:Invalid password`	Valheim server stops at start with a password error
`World load failed mid-file. Exiting without save. Check backups!`	Valheim says World load failed and the server stops
`Removing orphan save file: ...`	My uploaded Valheim world is gone and the server made a new one
`The BepInEx mod loader is missing from this server ...` or `Valheim Plus is missing from this server ...`	Valheim mods do nothing or the mod loader is missing
`[playnhost] mods: could not apply ...` or `[playnhost] Mods could not be applied: see above`	Valheim mod did not load on your server
`[playnhost] PlayNHost tools are off for this start: ...`	The Valheim players card says PlayNHost Tools are not answering

How to tell

Is the server Online? Can you join? Then the lines above are noise. If the server stops, goes Offline, or the world is not the one you expected, look at the lines just before it stopped, using the filter Since last start. See How to read your Valheim server console.

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