MacOS: Packing rn's bundle always stuck with Recrawled

I'm facing many 'Recrawled' problems recently.They stuck me in the packing process.The total process takes me an hour and a half what took me just several minutes before.
I have solved several problems with raising the default per-process descriptor limit and updating the ruby version(other packages with the same updating).
But I have the last problem with the info of 'FSEvents flag', I have no idea to resolve it
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Recrawled this watch 1 times, most recently because:
MustScanSubDirs UserDroppedTo resolve, please review the information on
https://facebook.github.io/watchman/docs/troubleshooting.html#recrawl
To clear this warning, run:
'watchman watch-del '/Users/lanleilei/temp/mobile' ; watchman watch-project '/Users/lanleilei/temp/mobile' '
`

MacOS: 11.6 Big Sur
ruby: 2.7.5p203
watchman: 2021.12.06.00