While running domino cli with upload, sync or reset on Mac, if you have the 'Big Sur' version of the operating system, you see a message similar to:
java.lang.UnsatisfiedLinkError: Unable to load library 'CoreServices':
then you may have an old domino cli - which does not work fully on 'Big Sur'. A new version is being developed and tested.
Please contact us directly if you're affected severely by this and are unable to refresh your project. You should be able to re-create your local copy (domino restore) or start fresh.
This has been seen also when files are deleted from either the local or remote files section and then sync fails.