由于发布服务器和订阅服务器的项目架构不匹配，合并进程失败。这可能是因为挂起了需要传播到订阅服务器的 DDL 更改。重试合并可以解决此问题。

The merge process failed because the schema of the article at the Publisher and Subscriber do not match. This could be because of pending DDL changes that need to be propagated to the Subscriber. Retrying the merge could fix the problem.