To prevent tons of post reporting the same errors over and over i was thinking it would be a good idea to keep a thread stickied, with the most common errors and there solutions posted. As these errors occur myself and others moderator will keep this updated. Credit to the MO community.

FAQ Questions in orderof posted below:

--Fastfile 1 of 1, "mapname": [ver. 5] process...
Localization ERROR: Unable to load "localizedstrings/mapname.str"!
link...compress...save...done.

--Fastfile 1 of 1, "mapname": [ver. 5] process...
WARNING: Could not find 'maps/mapname.csv'.
link...compress...save...done.

--Fastfile 1 of 2, "mp_building": [ver. 5] process...
ERROR: Could not open 'maps/mp/mp_building.gsc'

--You made a change to your map and now everything is red and messed up.

--My first multiplayer map won't load when I try to run it from the applications menu.

--My map looks good but my weapon and other models has a rainbow effect on it.

--Radiant crashes everytime i save my map when using Windows Vista

--When I load my map it switches to backlot.

--When I go to import xmodels and prefabs radiant crashes.

--When clicking the .prj file, an error appears saying it cannot find material $default and has to shut down radiant.

--When I go to compile my BSP my game pops up and sits at the main menu.

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ERROR
Fastfile 1 of 1, "mapname": [ver. 5] process...
Localization ERROR: Unable to load "localizedstrings/mapname.str"!
link...compress...save...done.

SOLUTION
Take out localizedstrings/mapname.str in Update Zone Files on the right and left side.

ERROR
Fastfile 1 of 1, "mapname": [ver. 5] process...
WARNING: Could not find 'maps/mapname.csv'.
link...compress...save...done.

SOLUTION
This is a file that is used when you are making a loadscreen for your map.
If you have this error early on, it just means that you have correctly done your mp_mapname_load.csv file.
It is only a warning and it can be ignored until you are working on the loadscreen.
IF you are working on your loadscreen and get this error, you need to make sure you followed all the steps in the wiki for
adding a loadscreen. The step where you had to add a level entry is the one that is missing.

ERROR
Fastfile 1 of 2, "mp_building": [ver. 5] process...
ERROR: Could not open 'maps/mp/mp_building.gsc'

SOLUTION
amishthunder writes: Just tweak the mp_test.gsc to your map and save as mp_building.gsc
In case it is not there, here is what it contains...

main()
{
//maps\mp\mp_backlot_fx::main();
//maps\createart\mp_backlot_art::main();
maps\mp\_load::main();

//maps\mp\_compass::setupMiniMap("compass_map_mp_backlot");

setExpFog(500, 2200, 0.81, 0.75, 0.63, 0);
//VisionSetNaked( "mp_backlot" );
ambientPlay("ambient_backlot_ext");

game["allies"] = "marines";
game["axis"] = "opfor";
game["attackers"] = "axis";
game["defenders"] = "allies";
game["allies_soldiertype"] = "desert";
game["axis_soldiertype"] = "desert";

setdvar( "r_specularcolorscale", "1" );

setdvar("r_glowbloomintensity0","1");
setdvar("r_glowbloomintensity1","1");
setdvar("r_glowskybleedintensity0",".3");
setdvar("compassmaxrange","1800");


}

ERROR
You made a change to your map and now everything is red and messed up.

SOLUTION
This is caused by having no reflections in your map. Make sure you have an adequate number of reflection probes placed
througout your map and recompile your reflections to fix this.

ERROR
My first multiplayer map won't load when I try to run it from the applications menu.

SOLUTION
Make sure there are no single player entities in the map, that you have named the map starting with 'mp_' and that you have add all 3 TDM spawn points (axis, allies and the other).

ERROR
My map looks good but my weapon and other models has a rainbow effect on it.

SOLUTION
You need to create a grid file. In the Compile tools on the Level Compiling window, the bottom right has the option to Start Grid. Perform this option and completely run through your level. Let the level complete on it's own and do not close it before it completes.

Another solution is that you simply need to compile lighting when you compile your map. Ensure that compile lights is checked in the mod tools for your map.

ERROR
Radiant crashes everytime i save my map when using Windows Vista

SOLUTION
Right click the CoD4 Radiant shortcut you made, in the drop down menu select 'run as administrator'.

ERROR
When I load my map it switches to backlot.

SOLUTION
This means that you do not have ALL of the requirements for a TDM map. TDM is the default mp map type and if all of the spawns are not there, it will skip the map.

Ensure that you have, at minimum, a TDM spawn, a TDM allied spawn and a TDM axis spawn.

ERROR
When I go to import xmodels and prefabs radiant crashes.

SOLUTION
In the Call of Duty 4 root folder, find the folder called raw. In there you should find the shader_bin folder. Copy that. Make a new folder at root/raw named raw. Paste the shader_bin folder there. Next go into the xmodel folder. Make a new folder called raw and paste the shader_bin folder in there. Last go to root/map_source/prefabs and make a new folder called raw and paste shader_bin folder.
You should now have the folders in these locations.
root/raw/raw/shader_bin
root/raw/xmodel/raw/shader_bin
root/map_source/prefabs/raw/shader_bin

ERROR
When clicking the .prj file, an error appears saying it cannot find material $default and has to shut down radiant.

SOLUTION
Create a copy of the radiant.exe and place it into your ...\...\Activision\Call of Duty 4 - Modern Warfare file, or wherever your game exe files are directly found. Then use the copied radiant.exe and wait a while. It took a long time for it to load for me but it seems radiant has loaded up

ERROR
When I go to compile my BSP my game pops up and sits at the main menu.

SOLUTION
This happens because you have Connect Paths checked in your COD4 Mod Tools for a multiplayer map. Remove this checkmark unless you are making a singleplayer map.



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Update log:

25th March - thanks to SpeedHighway

edited on Mar. 25, 2008 04:42 pm by Rasta