iPhoto Library won't open in Photos
I am trying to transfer my iPhoto Library (7.1.5)from my old iMac (Snow Leopard) to Photos on my new M1 Mac (Monterey). I have transferred the iPhoto Library to the Pictures folder in the new iMac. After starting Photos while holding the Option key I select the iPhoto Library. It doesn't open, but displays a message:
The library could not be opened
The library "iPhoto Library" could not be recognised
I believe I have followed the all the advised steps. Any solutions gratefully received.
I wonder if the old iPhoto library is too old for the new Mac?
iMac 24″, macOS 12.5