Have you ever encountered a WordPress upgrade failure in the background due to various reasons? Every time you log in to the top of the background, there will be an automatic WordPress upgrade failure prompt. This prompt is still available after you directly overwrite it with FTP, which makes you uncomfortable.In fact, it is very simple to remove this prompt. When WordPress is upgraded, a. maintenance file will be generated. In the WP root directory, just use the FTP software to enter the space, and delete this file to remove this prompt.
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The file MAINTENANCE has not been found. It has been manually upgraded successfully. There is no file in the root directory. I am a Windows host and cannot understand it