Xcode 4 - “Valid signing identity not found” error

Question

I had a Macintosh I used to develop iPhone apps with using XCode 4. I now have a new Macintosh with a new install of... everything.

When opening Xcode projects built on the old Mac, I cannot run the app on the iPhone that was configured as a development iPhone.
Xcode 4 organizer tells me "Valid signing identity not found" on my provisioning profiles.

I guess this is something to do with the .certSigningRequest file I had generated before on the old Mac (I have a backup of that file), but what do I have to do with it on the new Mac?

Another strange thing, I don't see my 5 existing provisioning profiles (defined on Apple provisioning portal) in the organizer, even after a refresh and after having entered my provisioning portal login and password :

Answer 1

I faced this problem this morning when I just opened an old app with a different certificate and allowed its access to the keychain. My other app that was working pretty well, stopped working with this error. I've been pulling out my hair till now, when I simply did this:

Xcode Menu > Preferences > Accounts > THE_APPLE_ID_THAT_YOU_ARE_USING > View Details

In the new window, at the bottom left of the Signing identities press the + button and select iOS Development. It'll re-add the identity, and after that my problem is fixed now and the app is running on the device again.

Answer 2

I solved the "Valid signing identity not found" error with more or less:

1. Make sure that the certificate in your iOS developer program is also listed in your keychain access and is valid (compare the issue dates). If it is not, either transfer it from your old mac using the instructions from apple reference OR delete it from the website and your keychain access and then recreate it, re-download it and drag it over X-code.
2. Delete any existing development or distribution provisioning profiles and recreate them based on your new certificate, redownload them and verify from keychain access that everything is valid.

Answer 3

You will have to go to your developer site, go to your certificates, and generate a new one for your current MAC and add it to your keychain.

And then you will need to add the Provisioning Profile again. It should work now. Basically you need to perform the same steps you did when you first got your Dev Certificate.

Answer 4

Make sure your certificate is in the "login" keychain. Highlight the login keychain if you don't see it, search for it. Then drag the cert over the words "login". Close and Open XCode, ta-da.

Answer 5

For the error

Valid signing identity not found

see Apple's published steps to resolve this problem.

Regarding the issue of your "5 existing provisioning profiles" on the iOS Portal which are missing from your local library in Xcode 4.x Organizer > Devices tab > Provisioning Profile section under Library.

I recommend following the steps that walks you through restoring missing profiles and also covers the case of an Xcode bug in which Xcode 4.1-4.2.1 mistakenly deletes from your local library profiles which are "Active" on the iOS Portal.

Answer 6

My MAC OS Crashed recently. I reinstalled Mac 10.7.4 and XCode 4.5. But all provisioning profiles were showing the following message in organizer.

Valid Signing identity not found

I struggled to find help for a couple of days. Later I realized that if you have migrated from one system to another(or formatted your system), you need to export your private key from your keychain from your old system to the new system (or new OS installed).

One can also export your developer profile/team developer profile in organizer.

Organizer > Teams > Developer Profile > Export

Hope it helps.