The error letter is as shown in the picture,
The cause of the error has not been resolved after searching the Internet for some solutions.
My personal solution: download Mi Assistant from the Internet to the computer, go to the download address on the official website ,
open Mi Assistant and connect it to the mobile phone, find the specific connection method online, and then test the uniapp again to debug successfully on the real device. As shown below, for normal use, hot update requires the real machine to exit the application and then enter it.
