Steam是一种视频游戏数字发行服务，可让用户购买、下载、安装和玩游戏。它还为用户提供游戏的安装和自动更新，以及朋友列表和群组、云保存以及游戏内语音和聊天功能等社区功能。如果您在尝试安装游戏时在Windows 10上遇到^{(Windows 10)}Missing App Configuration Steam错误，那么这篇文章可能会对您有所帮助。在这篇文章中，我们将确定一些可能触发错误的潜在已知原因，然后提供您可以尝试帮助修复此问题的可能解决方案。

此错误是在游戏安装过程中触发的，它通常会出现在特定游戏中并阻止用户安装游戏。请记住，此问题不仅限于安装完整游戏，一些用户报告在下载/安装特定游戏的DLC（可下载内容）期间也遇到了^{(Downloadable Content)}缺少应用程序配置^{(missing app configuration)}的错误消息。

此问题的最常见原因通常是Steam系统中的错误——因为错误可能会在更新期间引入。

此问题也可能是由 Steam 的appinfo.vdf文件引起的。此文件包含有关您下载的游戏的信息，例如它们的全名等 - 因此此文件中的问题或损坏可能会导致安装问题。

无论^(Regardless)您遇到哪个游戏问题，都适用相同的修复程序。

缺少应用程序配置 Steam 错误^{(App Configuration Steam Error)}

如果您在Windows 10中遇到^{(Windows 10)}Steam上^(Steam)缺少应用程序配置^{(missing app configuration)}的错误消息，您可以按照如下所示的顺序尝试我们推荐的两种解决方案。

1]删除appinfo.vdf文件

由于appinfo.vdf可能导致此缺少应用程序配置^{(missing app configuration)}错误，因此删除该文件可在大多数情况下解决该问题。这是因为Steam将在下次启动时重新创建此文件，因此可能导致问题的任何损坏或更改都不会出现在新创建的appinfo.vdf文件中。

要删除appinfo.vdf文件，请执行以下操作：

• 关闭 Steam 应用程序。
• 接下来，按Windows键 + E 启动文件资源管理器^{(File Explorer)}。

导航到以下位置：

C:\Program Files (x86)\Steam\appcache\

• 找到名为appinfo.vdf的文件。

如果您没有看到该文件，请单击“文件资源管理器”功能区上的“^{(File Explorer)}查看”^(View)选项卡，然后选中“隐藏的项目^{(Hidden items)}”框。

• 右键单击该文件并从上下文菜单中选择删除。^(Delete)
• 确认任何其他提示。

现在打开Steam并尝试再次安装/下载游戏，看看问题是否已解决。

如果这不起作用，请在删除appinfo.vdf文件后尝试以管理员权限运行^{(appinfo.vdf)}Steam（右键单击可执行文件并选择以管理员身份运行^{(Run as administrator)}） 。这可能会解决问题 - 如果没有看到下一个解决方案。

2]检查^(Check)并安装Steam更新

如果第一个解决方案无法解决缺少的应用程序配置^{(missing app configuration )}问题，那么您无法采取很多措施来纠正该问题，因为该问题很可能是由Steam客户端中的错误引起的。这些错误通常会在下一次更新中修复，因此您所要做的就是等待下一次Steam更新。

Steam会自动检查最新更新。因此，一旦可用，更新将自动安装，否则您将收到有关新更新的通知。记得^(Remember)打开Steam客户端，以便它可以检查最新更新。

Hope this helps!

PS ：如果您的^(PS)Steam 下载速度很慢，^{(Steam downloads are slow.)}请参阅此帖子。

Fix Steam App Configuration Missing or Not available error on Windows 10

Steam is a video game digital distribution service that lets users buy, download, install, and play games. It also provides the user with installation and automatic updating of games, and community features such as friends lists and groups, cloud saving, and in-game voice and chat functionality. If when you try to install a game and you encounter the Missing App Configuration Steam error on Windows 10, then this post might help you. In this post, we will identify some potential known causes that can trigger the error and then provide the possible solutions you can try to help remediate this issue.

This error is triggered during the installation of a game and it will usually appear for a particular game and prevents users from installing the game. Keep in mind that this issue isn’t limited to the installation of complete games, some users reported encountering the missing app configuration error message during the downloading/installation of a DLC (Downloadable Content) for the particular game as well.

The most common cause of this issue is usually a bug in the Steam system – since bugs can be introduced during an update.

This issue can also be caused by Steam’s appinfo.vdf file. This file contains information about your downloaded games like their full names etc – so a problem or corruption in this file can cause issues with the installation.

Regardless of which game you’re having the issues with, the same fix applies.

Missing App Configuration Steam Error

If you’re faced with the missing app configuration error message on Steam in Windows 10, you can try our two recommended solutions in the order as presented below.

1] Delete the appinfo.vdf file

Since appinfo.vdf can cause this missing app configuration error, deleting the file resolves the issue in most cases. This is because Steam will recreate this file on the next startup so any corruption or change that might have been causing the issue will not be present in the newly created appinfo.vdf file.

To delete the appinfo.vdf file, do the following:

• Shutdown the Steam app.
• Next, press Windows key + E to launch File Explorer.

Navigate to the location below:

C:\Program Files (x86)\Steam\appcache\

• Locate the file named appinfo.vdf.

If you don’t see the file, click the View tab on the File Explorer ribbon and check the Hidden items box.

• Right-click the file and select Delete from the context menu.
• Confirm any additional prompts.

Now open Steam and try to install/download the game again and see if the issue is resolved.

If this doesn’t work, then try to run Steam with admin privileges (right-click the executable file and select Run as administrator) after deleting the appinfo.vdf file. This might solve the issue – if not see the next solution.

2] Check for and install the Steam update

If the first solution fails to solve the missing app configuration issue then there isn’t a lot that you can do to rectify the issue because it’s most likely that the issue is caused by a bug in the Steam client. These bugs are usually fixed in the next updates so all you have to do is wait for the next Steam update.

Steam automatically checks for the latest updates. So, updates will automatically be installed once they are available or you will be notified about the new updates. Remember to open the Steam client so it can check for the latest updates.

Hope this helps!

PS: See this post if your Steam downloads are slow.

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