One of the reasons might be that the NIO connector is not configured in your server. Refer to the documentation for the Web messaging component to configure the NIO connector.
一个原因可能是 NIO 连接器没有配置在您的服务器上，参考 Web 消息传递组件文档来配置 NIO 连接器。
Therefore, the installation of such an application is prohibited to ensure that URLs uniquely map to one specific Web component.
因此，会禁止安装此类应用程序，以确保URL唯一地映射到一个特定的Web组件。
Indeed, the Web application layer might be realized completely by one or more Web services such that the application URL would only give the user a browser component.
事实上，Web应用程序层可能完全由一个或多个Web服务实现，这样应用的URL只会把浏览器组件暴露给用户。
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