790      iPhone_iPad_Mac_apple

DESPERATE: Mail quit/lost after upgrading to 10...

I recently upgraded to Sierra 10.12.6 from OSX El Capitan 10.11.6, and now I can't open Mail at all.

It says Mail quit unexpectedly. Any advice welcome as things are getting desperate. Mail is still available on my iPad but I really need it back on my MacBook Air. Here's the error message:

Application Specific Information:

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[MUICollectionView setInitiallyPinnedIndex:]: unrecognized selector sent to instance 0x7fb8dfc809f0'

abort() called

terminating with uncaught exception of type NSException

I'm not technically minded but tell me what further info you need to help and i will oblige

Grateful for any advice thank you

最后更新：2017-09-26 23:44:21

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