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Boot Camp Assistant has encountered a problem - An internal error has occurred

Hi,


I have a problem with Boot Camp Assistant.


When I start it and click to Continue, Boot Camp Assistant show me an error message.


In my iMac, I have an SSD from Fusion Drive and new 500 GB SSD and I have a clean installation of macOS 10.15.4


Here is a result of "diskutil list" - https://pastebin.com/ktTKag4F


Thank you for tips about how to fix this.

iMac 27" 5K, macOS 10.15

Posted on Apr 29, 2020 8:54 AM

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5 replies

Apr 29, 2020 11:07 AM in response to Muzzug

You seem to have replaced the stock HDD with a new SSD in the Fusion configuration. Now you have two separate APFS containers, that BC Assistant will not support. Recreate your Fusion drive using both SSDs, with the 32GB SSD as the Main and 500GB SSD as Secondary (check the man pages of diskutil apfs createContainer for details).

Boot Camp Assistant has encountered a problem - An internal error has occurred

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