I have tried three times to download and install macOS Big Sur over Catalina. I was successful on another Mac; however, on this MacBook Air mid-2013, I get this error after download and before instal:
The package "%@" is missing or invalid.
Any suggestions? Thanks. MelinAmarillo
MacBook Air 13″, macOS 10.15
Another option I would try. would be to re-download the Big Sur installer on the mac that it worked on. And then copy the installer over to the MacBook Air and try launching the app there. You will find the Install Big Sur app in your applications folder once it is downloaded. It is deleted at the end of the upgrade.
I hope this helps.
Paul
Another option I would try. would be to re-download the Big Sur installer on the mac that it worked on. And then copy the installer over to the MacBook Air and try launching the app there. You will find the Install Big Sur app in your applications folder once it is downloaded. It is deleted at the end of the upgrade.
I hope this helps.
Paul
Hello MelinAmarillo,
We would like to see how we can help with updating your Mac. What we need to do is see if the problem persists during safe mode. Here are the steps we’ll need to take to do so:
How to use Safe Mode on your Mac
After the device boots into safe mode, try to update the Mac. Get back to us with your results, and we can go from there.
Cheers!
I tried this fix on my MacBook Pro with Catalina and it worked first time.
Nicolas David Ngan
The package "%@" is missing or invalid Error after download
