After the Recent Steam update I got the following error

Every time I tried and open mlddecompiler or StudioCompiler I got this error.

" Extra App ID set to 211, but no SteamAppid".

How to fix this error? Make sure you have the correct dll file you can get it from this link http://www.chaosincarnate.net/cannonfodder/cftools.htm

Move the Exe’s over to this folder C:\Program Files\Steam\steamapps\USERNAMe\sourcesdk\bin\ep1\bin

Open up gameinfo.txt for the game your trying to model for and the game you got the model from and put a // just before the toolsappid or copy paste this

"GameInfo" { game "Counter-Strike Source" title "COUNTER-STRIKE'" title2 "source" type multiplayeronly nomodels 1 nohimodel 1 nocrosshair 0 hiddenmaps { "testspeakers" 1 "testhardware" 1 } nodegraph 0

FileSystem
{
    SteamAppId              240     // This will mount all the GCFs we need (240=CS:S, 220=HL2).
    //ToolsAppId                211     // Tools will load this (ie: source SDK caches) to get things like materials\debug, materials\editor, etc.

    //
    // The code that loads this file automatically does a few things here:
    //
    // 1. For each "Game" search path, it adds a "GameBin" path, in <dir>\bin
    // 2. For each "Game" search path, it adds another "Game" path in front of it with _<langage> at the end.
    //    For example: c:\hl2\cstrike on a french machine would get a c:\hl2\cstrike_french path added to it.
    // 3. For the first "Game" search path, it adds a search path called "MOD".
    // 4. For the first "Game" search path, it adds a search path called "DEFAULT_WRITE_PATH".
    //

    //
    // Search paths are relative to the base directory, which is where hl2.exe is found.
    //
    // |gameinfo_path| points at the directory where gameinfo.txt is.
    // We always want to mount that directory relative to gameinfo.txt, so
    // people can mount stuff in c:\mymod, and the main game resources are in
    // someplace like c:\program files\valve\steam\steamapps\<username>\half-life 2.
    //
    SearchPaths
    {
        Game                |gameinfo_path|.
        Game                cstrike
        Game                hl2
    }
}

}

One more thing before you play again Make sure you take out the //