Suddenly, cannot install app on device

Question

Liad OP

Created 2w

Replies 1

Boosts 1

Participants 2

Hi,

I am using Xcode 16.4, and my test device is Iphone 16 pro max. Everything was working fine until today when I get an error that I cannot install the app on the device. The error I get is: Failed to verify code signature of /var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.cRjyg7/extracted/[myapp].app : 0xe8008015 (A valid provisioning profile for this executable was not found.)

Please ensure sure that your app is signed by a valid provisioning profile.

Creating a new project and installing it to the mobile works fine.

Please can someone from Apple or the community respond? there are many posts with this error but none were solved.

Troubleshooting attempts included:

Resetting all certificates.
delete the app from the device
unpairing device
codesigning via cli
reloading older git code commit

Nothing is working.

thanks

Boost

Answer 1

lifjoy OP

1w

I experienced this error message too, and was able to resolve it by using TimeMachine to restore my app's Xcode project file to a version from yesterday.

The provisioning profile issue started today after Xcode 26b3 offered to update my app's project file, and I approved the updates. That update process altered something with the project's provisioning profile data which Xcode 16.4 did not like or did not understand. The result: Xcode 16.4 was unable to install my app on any of my devices (iPad, iPhone, Mac)-- even though Xcode 26b3 was able to.

Prior to making this discovery, I tried most of the troubleshooting tips that you attempted, and none of them worked for me either. It was only after I realized that Xcode 16.4 was able to install my other apps onto my devices, that it dawned on me this issue was confined to a single project. That's when I decided to try restoring the project file from a backup (not the source code; just the Xcode project file).

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