Error during Xcode Component Installation
This problem has once again appeared in Xcode 11.1 and is caused by an invalid certificate that expired some day in October 2019.
You can work around the problem by temporarily changing the system date to before the certificate expiration date.
In the case of Xcode 11, set the system date to Oct 3, 2019, run Xcode, then change the date back after the components have installed.
In Xcode version 4.3.1 (4E1019), I suspect that I got the problem after an iTunes update this morning. Found the following somewhere on the web:
- Go to Applications folder
- Right click Xcode
- Click Show Package Contents
Then navigate to Contents/Resources/Packages. Double click on Install MobileDevice.pkg.
