Q: I recently downgraded from el capitan to lion but now my iTunes will not open and says two update to newer version of iTunes, lion ... I recently downgraded from el capitan to lion but now my iTunes will not open and says two update to newer version of iTunes, lion will not update to 10.7.5 how to fix? more
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Jan 4, 2016 9:13 PM in response to swamovesby swamoves,I had to downgrade so my drivers would work again on my Tascam board for protools. Now my Tunes will not open until I upgrade 10.7.5 but my mac stops updating when a error comes up saying file is corrupt?
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Jan 5, 2016 5:28 AM in response to swamovesby Limnos,Once the library file has been opened by a newer iTunes version it can no longer be opened by the older version. Lion will not support the newest iTunes so you will have to use iTunes 12.2 or lower and also rebuild your library file so it can be opened:
ASC user turingtest2 help document: Empty/corrupt iTunes library after upgrade/crash - https://discussions.apple.com/docs/DOC-6561
If you don't see your content after updating iTunes - https://support.apple.com/kb/HT203225
If you have any i-devices using iOS9 they will no longer sync with anything less than iTunes 12.3 and you will be forced to decide between syncing or using your other equipment. Alternatively go to a more complex solution running two operating system versions.