Pink textures in gmod

Check server all contents, Check you folder garry's mod and css content.

Depending on what map you're playing, it could be one of a few games but your most likely culprits are:

Counter-Strike: Source
Half-Life 2
Half-Life 2: Epi 1 & Epi 2

Its worth noting that you can get the Half-Life 2 textures for cheaper by buying Half-Life 2: Deathmatch, then avoiding the full charge

You can find downloads as stand-alone addons for Epi 1 & Epi 2's materials and models. They're still up on garrysmod.org I believe

Make sure the server you're playing on; if it has a workshop collection that you're subscribed to it

it might be a addon that is on you're game of something like that is fucking up you're game or the server or gamemode that you are trying to join is fucked up and has some content or addons that are illegaly added on to its server.

Download CSS textures otherwise garry's mod will make that bug

You should buy css or download the content via internet.
It may be HL2EP2 too, feel free to face it)

You need css, hl2 content.
In most cases, pink textures will be lost.
But there are cards where they use their textures and indicate in the description or additional add-on as it goes.

you might me missing addons or your textures are messed up validate gmod that might help

All you will need is CSS and Hl2 ep1. Some maps need Hl2 ep2 but not very many of them.

CSS --> http://www.mediafire.com/file/u3t7eo8k9b...pr2016.zip

HL2-EP1 --> https://mega.nz/#!fUohVD5K!_BSCk0qWKvOF3...dQT0JE92NI

HL2-EP2 --> https://mega.nz/#!2BgBCJgb!gwvPRiufvJmwo...2XgrxkwFHI

do you have all the HL2 & CSS content ? you surely have some game content missing.

download the content of the server, it should help, if it does not help, then it means that some addons conflict