FiveM Client/Server game build revision mismatch
A player's game and your server were built against different GTA updates. Right after a FiveM update this is normal for a day or two.
Do this first
If it started for everyone at once, update your server files. If it is one player, they are on a beta build.
What it means
The client and the server were built against different game revisions and refuse to talk. It is normal for a day or two after a FiveM update, while clients update on one schedule and server artifacts on another.
What causes it
Ordered by how often it is the answer.
- 1
A FiveM update just landed
Clients update automatically, servers do not. Until the server owner updates the artifact, updated clients cannot join.
- 2
The server artifact is too old
Same thing, but permanent rather than temporary — a server that has not been updated in months.
- 3
The client is on a different update channel
Beta or canary against a production server.
- 4
A pinned gamebuild the client has not downloaded
sv_enforceGameBuildfor a DLC the client has not pulled yet.
How to tell which one is yours
If everyone is suddenly unable to join and nothing changed on your side, an update landed. If one player has it, they are on a different channel or their download is incomplete.
Where to look
The server artifact version, and sv_enforceGameBuild in server.cfg.
How to fix it
Update the FXServer artifact to a current recommended build. On the client side, switching from beta back to production and letting the game finish downloading the enforced build resolves the individual case.
Still stuck on your own code?
This page is what this error usually means. Paste your console into Server Fixer and it will rank everything in it and tell you what to do first, and if you would rather not touch it, ORBIE can repair the script and hand the resource back ready to drop in.
bug_reportOpen Server Fixer