i have download and installed the Xcode 12.4 from apple site (not apple store) because I am using macOS Catalina 10.15.7 and the latest Xcode version right now requires at-least BigSur 11.0. I have also installed the latest Xcode command line tools.
But when i try to open my react native project in Xcode simulator from terminal using npm run ios it says,
"Xcode needs to be installed (don't worry, you won't have to use it), would you like to continue to the App Store? › (Y/n)"
By the way, I am a new mac user so, i don't know much about it yet. So, any kind of help will be appreciated.
My bad, i have not selected the installed command line tools in Xcode. If anybody got this issue then make sure you also select the installed command line tools. Simply open Xcode, go to preference -> locations -> command line tools.
If you're having this issue, running this in the terminal may fix it for you.
sudo xcode-select -s /Applications/Xcode.app
Open Xcode
go to settings
go to locations tab
select an Xcode version in the select labeled "Command Line Tools"
After an automatic update of macOS v10.15 (Catalina), I am unable to open Xcode. Xcode prompts me to install additional components but the installation fails because of MobileDevice.pkg (Applications/Xcode.app/Contents/Resources/Packages)
I have found multiple answers on how to locate MobileDevice.pkg and that I should try to install it directly, but when I try to do this the installation fails too. I have also tried updating Xcode from App Store, but the update failed when it was nearly finished.
Has anyone experienced the same behaviour? Should I reset the Mac to default and install macOS v10.13 (High Sierra) or Catalina from scratch or it is a problem of Xcode and re-install would do the job?
I have found a discussion here that was posted today and is probably regarding the same issue and it seems like many people are dealing with it, too.
The log:
*2019-10-25 01:03:34+02 Vendula-MacBook-Pro Xcode[1567]: Package: PKLeopardPackage
<id=com.apple.pkg.MobileDevice, version=4.0.0.0.1.1567124787, url=file:///Applications/Xcode.app/Contents/Resources/Packages/MobileDevice.pkg>
Failed to verify with error: Error Domain=PKInstallErrorDomain Code=102
"The package “MobileDevice.pkg” is untrusted."
UserInfo={
NSLocalizedDescription=The package “MobileDevice.pkg” is untrusted.,
NSURL=MobileDevice.pkg -- file:///Applications/Xcode.app/Contents/Resources/Packages/,
PKInstallPackageIdentifier=com.apple.pkg.MobileDevice,
NSUnderlyingError=0x7fabf6626d00
{
Error Domain=NSOSStatusErrorDomain
Code=-2147409654 "CSSMERR_TP_CERT_EXPIRED"
UserInfo={
SecTrustResult=5,
PKTrustLevel=PKTrustLevelExpiredCertificate,
NSLocalizedFailureReason=CSSMERR_TP_CERT_EXPIRED
}
}
}*
Edit and set the date of your Mac as October 1st, 2019.
I didn't have Xcode 11.1 installed and even though I could open and run the 11.0 after the below workaround I could not update to 11.1 as the update always failed. So I have just re-installed the whole app from the App-Store - you could probably also do this instead of the below method.
I have tried setting my system time to 1st October 2019 when the certificate should had been still valid. After that I tried to open Xcode and followed the component install which went well and now I am able to work with Xcode again.
I had a similar problem, where I installed Xcode 11.1, and installed the components and everything within the same folder where I had Xcode 10.2.1. Then, I tried to go back to Xcode 10.2.1 and couldn't opened as it was asking me to install components again, and when I tried I was getting this error.
The package “MobileDeviceDevelopment.pkg” is untrusted.
So, the workaround that fixed it for me was navigating to...
/Users/YourUser/Applications/Xcode\ 10.2.1.app/Contents/Resources/
Then, deleting MobileDeviceDevelopment.pkg and everything went back to normal :)
I hope this helps anyone else with this issue. Cheers!
At macOS Catalina
cd /Applications/Xcode.app/Contents/Resources/Packages
sudo rm -rf MobileDevice.pkg
sudo rm -rf MobileDeviceDevelopment.pkg
Try again.
It means you entered on the Xcode downloaded packages and remove it. I really don't understand how Apple do but if you remove Xcode will download it again and revalidates.
Some remarks, I'm on XCODE Version 11.0 (11A420a) if you are not this is not guaranteed to work.
You may solve this issue by setting the date of your Mac as October 1st, 2019. But this is just a hack! The real solution (suggested by apple) is this:
All you have to is to upgrade Xcode
But there is a known Issues on apple developers site
Xcode may fail to update from the Mac App Store after updating to macOS Catalina. (56061273)
Apple suggests this:
To trigger a new download you can delete the existing Xcode.app or temporarily change the file extension so it is no longer visible to the App Store.
Always working solution for all Xcode issues:
Go here and log in.
Then download the xib from here.
More information here on this answer.
##Answer to this specific issue##
Get rid of those packages.
cd /Applications/Xcode.app/Contents/Resources/Packages
sudo rm -rf MobileDevice.pkg
sudo rm -rf MobileDeviceDevelopment.pkg
Xcode will install all of them again for you.
rm -rf /Applications/Xcode.app/Contents/Resources/Packages/*.pkg
It will work and re-open the x-code
Try to run Xcode-beta instead of Xcode to install additional components. After that you'll be able to use Xcode release.
For me, I just uninstalled (deleted the app from the Applications folder) and then went back to app store and clicked the cloud icon and it downloaded fresh and installed. Now all is good and back to normal.
Here's what I did to resolve:
Right click the xcode.app > show package contents > Contents > Developer > Platforms > iPhoneOS.platform > Device Support
I am on XCode 10.2.1. I had downloaded a 13.7 folder and contents from an external GitHub site and imported that folder into here for running my app on a physical iPhone Xr. I am prevented from upgrading to Catalina on my dev machine. Deleting the 13.7 folder and then re-launching XCode resolved the issue for me.
Reinstall Xcode 11.1 from https://developer.apple.com/download/more/ . Afterwards the update works.
This requires Xcode 11.1 to be installed.
I was not able to update to Xcode 11.1 until I updated macOS Catalina to 10.15.1. After updating my macOS, I was able to install Xcode 11.1, which also allowed the installation of the additional components package.
I'm getting the following 2 errors that seem that alternate every time I try to build. I just upgrade my iOS to 12.2 which forced me to upgrade my osx to Mojave 10.14.4 and my xcode to 10.2.
Failed to find or create execution context for description.
Filed to find a suitable device for the type IBSimDeviceTypeiPad2x in
Assets.xcassets
This I have tried:
Cleaning Build Folder (repeatedly)
Closing and restarting Xcode and the simulator
Deleting Derived Data
I had faced the same issue my issue resolved by doing:
Clean build folder (shift + command + K)
Restart your system (Mac)
Note: Also missing simulator after updating to Xcode 10.3 fix by this solution.
Run this command in the terminal to make sure all simulator process in the background are killed :
sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService
Well I don't know how many other people this is going to help out but here was my issue:
I poked around and finally got another error that said that my simulator runtime is not available. What ended up solving it was simply restarting my macbook found from this thread: The iOS 8.1 simulator runtime is not available error in Xcode 6.1
I'm using Xcode 8 and cannot run a playground. As soon as the playground opens and starts to build the file I get this error:
Under Preferences -> Components in Xcode I do not see any iOS 10 Simulators available for install:
I have Xcode 6.4, 7.3, and 8.0 installed but my command line tools are pointing to Xcode 8. How can I fix this issue?
Restarting my computer and opening Xcode 8 before 7 or 6 fixed this error and made Xcode 8 playgrounds start working again.
Quit all Xcode versions you have running. Quit the simulators as well.
Then open the desired Xcode version.
Go to Xcode >> Preferences >> Locations >> Command Line Tools >> and change it to match the Xcode version you've just selected. You have to do this manually each time you switch between different Xcode versions! To be on the safe side just delete the derived data as well. But I'm usually able to get it to work without that.
If that didn't work then also restart your mac.
The application "Xcode5.1.1" can't be opened.
I use x-code 5.1 to build iOS apps, now when i installed x-code6 beta version to implement app with swift language then xcode 5.1 is not working. It is giving me such error-
I use to resolve problem with Xcode 4.6.3 crashing after installing xcode 6 beta but not found this useful for my case.
I have tried to restart machine but it is giving same error. I googled for it but not got useful stuff. Any help would be appreciated.
Try to select different "Command line tools" in the bottom of Xcode -> Preferences -> Locations.
You can do it in your working Xcode 6.
After trying more I found it useful
Restart your machine then it can work, if not like my case then try below command in your Terminal
sudo mv /System/Library/PrivateFrameworks/MobileDevice.framework{,-saved}
then again restart your machine then it will ask for installing few components of Xcode so allow it, then your Xcode 5.1.1 will work fine.