Hello Siyao, Not a LilyPond issue. This is normal for all non-App-store programs. See this:
https://www.macworld.co.uk/how-to/mac-app-unidentified-developer-3669596/ <https://www.macworld.co.uk/how-to/mac-app-unidentified-developer-3669596/> Andrew Culver > On Jun 17, 2021, at 00:17, Siyao Cheng <s.che...@westernsydney.edu.au> wrote: > > Hi, > > I have some difficulties installing the LilyPond on my MacBook, I wonder > whether it is because of the latest Big Sur system. When I tried to open > LilyPond, it showed ‘LilyPond cannot be opened because the developer cannot > be verified’. Can you help me with this issue? > > Kind regards, > > Siyao Cheng | PhD Student > MARCS Institute for Brain, Behaviour & Development > Western Sydney University > Locked Bag 1797 > > <image001.jpg>
