Fix Garry's Mod addons not loading

Fix Garry's Mod addons that will not load: the Workshop collection and Steam Web API key, purple-black missing textures and ERROR models (mount CS:S content), Lua errors on join, finding conflicts in halves, and "failed to load" downloads.

  • 1:08 video
  • English captions & transcript
  • 4 November 2026

Transcript

The full narration, chapter by chapter. Click a time to play the video from there.

Intro

Garry's Mod addons not loading? Purple checkered textures, or errors everywhere? Here's how to fix it.

Workshop collection

Your server sends addons to players through a Workshop collection. In the launch options, set host_workshop_collection to your collection ID, and add a Steam Web API key with authkey.

Missing textures

Purple and black checkered textures, or big red ERROR models, mean missing game content. Most addons expect Counter-Strike Source content. Mount it on the server, and players need it too.

Lua errors

A red Lua error on join names the addon and the file. Usually it's an outdated addon. Update it, or remove it to confirm.

Conflicts

Something broke after you added addons? Remove them in halves until you find the one that conflicts.

Failed to load

And if an addon says "failed to load", its file is usually corrupted. Unsubscribe and subscribe again to force a fresh download.

Recap

Quick recap: collection and API key, mount the content, read the Lua error. And add FastDL so joins are fast. Garry's Mod hosting at esagames.ro.

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