cannot unzip the file with "error 79 - Inappropriate file type or format."

i can unzip the same file smoothly in the previous os mojave, the file is around 100 jpg photos in total 500 mb, but i failed to use the unzip the file in catalina, i tried to use other unzip app like the unrachiver to unzip the file. but it help nothing, and keep showing the "error 79" to me... what can i do? thank you...

MacBook Pro 13”, macOS 10.15

Posted on Feb 25, 2020 11:03 AM

Reply
2 replies

Feb 25, 2020 11:17 AM in response to JoliaKim

Boot into Safe Mode (Use Safe Mode to isolate issues with your Mac and Playing Safe: what does Safe Mode do?) and try unzipping from there. Then reboot normally.

NOTE: Safe Mode boot can take up to 10 minutes as it's doing some system cache cleaning, volume verifying and directory repairing. 

That error could be caused by damaged system files in the upgrade process. Try downloading and applying the macOS Catalina 10.15.3 Combo Update and then try again.




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cannot unzip the file with "error 79 - Inappropriate file type or format."

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