The constant updates of Counter-Strike: Global Offensive mean that users sometimes get errors regarding “invalid app configuration” This error usually means that the appinfo file telling Steam how to start CS:GO is corrupt.
Now that sounds bad, but clearing up an invalid configuration issue is actually a simple fix that involves only one file inside the Steam directory.
If it doesn’t work, there are a few more options that players can try before they might just want to consider downloading the game again. Luckily, Steam’s options for verification and settings make troubleshooting a breeze, so players will want to try these tips before they lose their data cap.
Fixing invalid app configuration error in CSGO
The dreaded invalid app configuration error of CSGO can pop up at any time, but while most people think it could have something to do with other configuration files of CSGO such as autoexecs and cfg files, this error actually refers to a file telling Steam how the CSGO application should be opened. The first fix involves heading into and deleting this file in Steam’s install directory.
Step 1: Delete the appinfo.vdf from Steam
For players stuck with an app configuration error, the next option is to delete a certain file inside Steam. Before they navigate to their Steam install folder, users should first exit Steam. Steam is generally located under the primary drive of a user. The full file path in Windows should look something like this:
C:Program Files (x86)\Steam\Steam\appcache\appinfo.vdf.
Once the appinfo.vdf file has been found by players, they can go ahead and delete it. The program will check for this file once players log back into Steam, notice it’s missing and create a new one.
This remade file has reportedly fixed the error for some players, as Steam appinfo.vdf contains the error-mentioned app configuration file.
This won’t harm any existing installations, so as long as they only touch the file mentioned, players are perfectly safe.
Step 2: Verifying CSGO’s game files
This is a tried and tested method for fixing almost anything related to CSGO. If the appinfo fix does not work, this should be the next step for players. Validating the game’s files is the second step to fixing CSGO’s app configuration error.
Players can do this by right-clicking on CSGO from Steam and then choosing “Properties.” After that, under the “Local Files” tab, users can find the “Validate Game Files” option.
Step 3: Clear the Steam Download Cache
Finally, for some users, clearing Steam’s download cache has also helped. From the menu in the upper left corner of the Steam client, go to Steam client settings, select ‘Settings,’ ‘Downloads,’ and finally, ‘Clear Download Cache.’ Note that this will log players out of Steam.
Step 4: Download CSGO and reinstall and clear the invalid app configuration error
Typically, Steam’s app configuration error is caused by game or Steam updates, so while a full reinstall of CSGO appears to be overkill, the appinfo file is also reset and the error is removed.
Some players said that a simple check did not work for them, but the CSGO did a complete reinstall, so players always have this option to fall back on.
Before altering any files, remember to close Steam, and players should be back on live servers in no time.