Message in Chinese (Simplified) (中文(简体))![](/img/flags/zh-chs.png)
MSB3121: 应用程序清单中的文件关联元素缺少一个或多个以下必需属性: 扩展名、说明、progid 或默认图标。
Unlocalized message![](/img/flags/en.png)
MSB3121: The file association element in the application manifest is missing one or more of the following required attributes: extension, description, progid, or default icon.
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