I'm using the latest XCode (6.1) and I need to submit the app as soon as possible, but I can't seem to get around the "Your account already has a valid iOS distribution certificate" error.
I have the client's provisioning profile and I have his distribution certificate (which is valid) and his private key (I've checked using Keychain, it's definitely there). The bundle ID is also correct. I've deleted my provisioning profiles and certificates and reinstalled the client's many times now.
What could be causing this issue? I've seen a lot of topics here on SO with this problem, so I apologise beforehand for creating yet another clone, but I really don't know how to fix this.
edit: I'm running a brand new install of Yosemite by the way
Got it solved by editing the iOS Distribution Provision Profile in the Developer Member Center.
For some reason there were 2 certificates to choose from for the Distribution Provisioning Profile. I switched over to the other certificate and I could Validate and Submit my Archive build for beta testing.
So, you may have more than one certificate for signing your Provision profiles. Make sure you have the right one (by trying all of them) and hopefully that should work.
I tried many things like Exporting Developer profile from Xcode Accounts and importing it in the organizer, installing the provision profiles from the member center, adding them to my keychain. But none of those worked. It started working only after editing the appropriate Provisioning Profile manually.
You could also trying removing all your available Provisioning Profiles and let Xcode create new ones for you. This will work too.
I also had this issue, which turned out to be caused by an attempt to export for ad hoc deployment using a development provisioning profile instead of a distribution profile. It seems this is no longer supported in Xcode 6.1. Once I created an ad hoc profile and installed that the problem went away. A more useful error message would have saved me hours of work and would be greatly appreciated, Apple.
This thread was helpful:
xcode 6 beta 2 issue with exporting ipa "Your account already has a valid iOS distribution certificate"
Besides all the other answers, there's one more possibility after 2/15/2016: the old World Wide certificate expired and I guess everyone has already downloaded the new cert (or check this out). However, you'll be seeing this error if you haven't remove the expired one. You may need to choose View -> Show Expired Certificates to unhide expired certs. If the error is still there, try regenerate provisioning profile as advised by the others.
I was moving to new Mac when I faced this issue.
On your older Mac:
Go Preferences > Accounts > Select Account > Details.
In the dropdown right click on iOS Distribution (or whatever is the name of your distribution certificate).
Export...
Set a password for the .p12 file.
Move and install this .p12 in the new mac.
Try Again.
Another possible cause for the problem (at least in my case) was that in my Keychain Access, I had two certificates for the team I was working with. One was expired, and the other one was the one I wanted to use. Deleting the expired certificate in Keychain Access solved the issue.
I ran into this problem, and I wanted to avoid screwing up my push notifications.
The easy fix for me was to just go to developer.apple.com > project > certifications, ids, and profiles > profiles > create a new profile (for development or distribution)
Download the created profile, drag and drop the profile over the Xcode icon, and then in your project target, set the new profile as the provisioning profile.
This fixed my problem--it may provide further help in the future.
The error message could mean that you need to get the Distribution certificate and private key from the developer who created them.
This can happen if some other team member has pressed the enticing "Reset" button (which means revoke certificate and create a new one).
Here is a picture what the revoked certificate looks like:
You can export the valid certificate from the developer who created
it and import it to other team members keychains.
Go to "Keychain Access" app.
Click on the "Login" in the top left box
Click on the "Certificates" on the bottom left box
Check which team member has the valid certificate:
when clicking on the "iPhone Distribution" certificate
everyone else sees "This certificate is revoked" in red at the top.
(Maybe backup the deleted certificate to avoid doing anything irreversible)
delete the revoked certificates
Export the one valid certificate and distribute to team
Import the certificate file for everyone else
Today I was solve problem by delete from keychain old certificate Apple Worldwide Developer Relations Certification Authority and install new one (exp. in 2023)
I'll add to here because while the accepted answer got me on the right track it wasn't the solution. There was a second (automatically created by Xcode) distro cert which I revoked. After doing that a new error came up. ("An App ID with Identifier '' is not available"... it also wasn't helpful) Eventually this lead me to the fact that my App Id in the member portal didn't have entitlements matching the build.
I solved this issue by editing the provisioning profile in the member center which is used in my app and re-install the provisioning profile.
I recently changed computer.
The reason for me was that I had several developer certificates in the Apple Developer member portal.
The solution was :
Go to Apple Developer Portal
Go Under Certificates -> Production
Click on "Revoke" for the oldest certificates and keep the most recent one
Revoking certificates won´t affect your Apple Store apps :).
I had this happen to me when I accidentally reset the certificate on another mac. Here's my scenario.
Mac1 - Had working certificate.
Mac2 - I accidentally reset the iOS distribution certificate
Mac1 stopped working and I get the message "Your account already has a valid distribution certificate"
The fix was
On Mac2, Keychain access -> certificates -> iOS Distribution certificate (for you/your company) -> export to p12 file (it will ask you to set a password)
Copy the exported file to Mac1
On Mac1, Keychain access -> certificates -> iOS Distribution certificate (for you/your company) -> delete (this is the old one that does not work)
On Mac1, double click the p12 file (then enter your password).
You should see a new iOS distribution certificate (for you/your company) in the certificate section of Keychain access.
This fixed the issue for me on Mac1.
Got it solved by deleting the provisioning profile which is managed by Xcode
(XC iOS Ad Hoc: *) from the member center
Ok, I am completely pulling my hair out on this one.
Back in July I created a provisioning profile so I could test on my iPad.
Then at the end of August I tried submitting my first App to the iTunes Store. The process was a complete nightmare, and I struggled. A lot. In the end I found a tutorial with relatively recent information in it, and only by following it step by step could I actually get anywhere with this. Unfortunately the result of this was that I created a new provisioning profile.
Now when I try to test on my iPad I get the following error in Xcode:
Certificate identity 'iPhone Developer: MyName' appears more than once in the keychain. The codesign tool requires there only be one.
I check the keychain, and sure enough there are the two provisioning profiles for development, one from July and the one I used to submit to the iTunes Store in August.
Now what I want to do is get rid of the old one, and then connect my iPad up to the new one. I can get rid of the old one fine, but I cannot connect my iPad to the new one, it insists on using the old profile, even to the point of re-attaching it to the keychain after Ive deleted it.
Can anyone tell me:
How to connect my iPad to the new provisioning profile?
And while we are at it, can anyone shed any light on why this entire process is so convoluted and difficult? Considering that so much of Apples interface is so well designed and fluid, this process of registering certificates and applying them to different devices and Apps seems so backwards. I initially suspected this was just me, but googling for these error messages reveals that there are many who are struggling at various points along this process.
This has nothing to do with Xcode and everything to do with keychain.
Open keychain.
Find the signing certificates that are tied to your provisioning profiles.
Delete one. You probably want to keep the newer one, so look at the expiration dates and remove the one that expires first.
Restart Xcode
You may need to update your provisioning profile if it isn't tied to the new certificate, but it won't be as painful as creating a new certificate.
Here's a broad overview of how code signing in Xcode works. It a bit much but will explain what's wrong with your configuration, and how you can fix it.
There are three parts to the mechanism that ensures that you are who you say you are and that your app is allowed to run where it wants to.
You've got a pair of keys, one public and one private. Your public key matches your private key, which identifies you.
Your keys are used to generate certificates. Generally, you'll have one certificate for development and one for distribution,either on the App Store or via Ad Hoc distribution. These certificates permit you to provision your apps.
Each certificate is used to generate provisioning profiles. The profiles must be attached to either a development or a distribution certification. A distribution profile either works on the App Store, or it contains a list of device IDs which may run apps signed with that profile.
If your certificate is expired, the provisioning profiles that are created with it are going to be invalid. In this case, replace both the certificate and the profiles. Generate a certificate signing request (CSR) from Keychain Access and upload it to the developer portal.
If you have multiple certificates in your keychain, Xcode won't know which one to use. This may happen if you renew your certificate and don't remove the old one. (It may also happen if you exported your developer profile and then imported it later. Your old certificates will carry over.)
If your provisioning profile is expired or invalid, you can renew it in the developer portal without generating a new CSR. You can just attach it to an existing valid certificate.
Certificates can't be carried over from one machine to another without moving the original key pair that requested it. Exporting the certificate from Keychain will export the keys as well.
Delete the old one, and start build with new.
One more way you can try , set code signing identity with profile you want to run in both target as well as project build setting.
Hope it will help you.
Otherwise you have to delete old one.
A recent attempt to build an app failed and I realized that the App ID prefix (Team ID) was different from the Team ID of my developer certificate. The prefix of my Distribution certificate is correct and matches my Team ID. My account is an individual one and I have attempted several times revoking and reissuing my Development certificate, but each time it is generated, it produces a certificate with a different Team ID.
To recap:
App Identifier Prefix (on iTunes Connect): 8RJ7xxxx
Distro Certificate Team ID: 8RJ7xxxx
Development Certificate Prefix: 5PM6xxxx
Result: Develpoer team ID mismatches (between XCode and Certificates in Keychain) prevent app from being code signed.
Has anyone seen/corrected this issue?
After a back and forth with iOS Developer Help personnel, we've determined that:
The Team ID for the Development Certificate is randomly assigned and will be different from the Distribution Certificate. The arbitrary Team ID for the Development Certificate ultimately has no bearing on reality. The code signing issues I was having were coincidental and were eventually fixed by (what you can read elsewhere on this site) revoking everything, re-issuing all certificates...and (what I was not doing) WAITING PATIENTLY (took about a day) before everything went back into effect.
if you login into https://developer.apple.com you will see in the "Identifiers" part, that every of your prefixes is an other one.
Check if your developer provisioning profile (I think it's the Wildcard profile) is connected correct with your certificate. Or you can delete it an synch again with xcode so it will create a new one by itself :)
I found the similar issue.
I had different ID’s both on generated certificate and provisioning profile.
When I restarted my machine Xcode was able to re-fetch the matching certificates.
This could be the Xcode bug to identify the exact certificate for the provisioning profile.
Restart you system and check Your Xcode settings
None worked for me so my solution is
Go to Signing & Capabilities (that tab you enable auto signing)
Disable app groups / entitlements. That worked for me.
I'm pulling my hair out over this. I just downloaded the iPhone 3.0 SDK, but now I can't get my provisioning profiles to work. Here is what I have tried:
Delete all provisioning profiles
Delete login keychain
Create new "login" keychain, make it
default
Create a new certificate signing request
Create new developer and distribution
certificates in the Apple developer center
Download and install them
Download the WWDR certificate and install it
Create a new provisioning profile and
double click it to install
All the certificates report as valid, but Xcode still won't recognize them. What should I try next?
Edit:
I completely re-installed Mac OS X and from a fresh install installed the 3.0 SDK and still have the same problem.
I had the same problem: I first downloaded my certificates to my small MacBook while on the run. When trying to install the certificates on my iMac... then I ran into the problems described on this page.
After spending hours pulling my hair out like many of you, I performed the following steps to fix it:
Close all your stuff except your webpage that should be logged into App Dev center.
Open Xcode. Click WINDOW > ORGANIZER. Then click the Devices tab and select "Provisioning Profiles" on the left.
That should bring up your provisioning profiles. Highlight one by one (if more than 1), right click and delete profile. Yes, just do it! Delete them all! (I kept making a new one after a new one trying to make the thing work.)
From the first page you see after logging into the App Dev Center on the right side click "iOS PROVISIONING PORTAL" > (do not "launch assistant"). Instead click on the left side. Select CERTIFICATES. You will probably have just one line listed with your name/company - from there click on the right side REVOKE. Click OK to verify that's what you want to do.
On the same page click DEVICES. Click the box next to your device you are trying to provision and click REMOVE SELECTED. Again click OK to verify.
Wait about 2 minutes to let Apple do their thing.
Now click on "HOME" that is on the left side navigation.
Click "Launch Assistant"
create a new app ID - call it whatever you want. Just make sure it's unique enough to know that's the one you just created because the others you've been messing with all day will not be deleted from Apples Dev Center.
You should be able to follow the rest of the Assistant without troubles -- the main thing is you just had to delete your old provision profiles and start over.
Good Luck!
I encountered the same issue. This is because the private key of the certificate does not existing on your machine.
If you are now using a new machine and download the certificate from website:
You can export the certificate from the old machine and then import on the new machine.
If you share the developer account with someone:
You ask the account owner to send you an invitation and become a team member of that account. Then you can create your own certificate from scratch.
If you don't want to handle all these sh*t:
Just revoke the certificate on website and delete the copy on your local machine. Then request a new one. This should be the ultimate way for solving such issue.
Had the same problem yesterday. Now, after signing to the developer portal, for every invalid provisioning profile have a button "Renew". After renewing and downloading updated provisioning profile all seems to work as expected, so problem is definitely solved :)
Update: you may have to contact Apple to get a "Renew"-button, or they removed it -- and the solution is to just download it and add it to the keychain, no need to renew.
What I found was that I needed to drag the distribution_identity.cer file that I downloaded from the "Certificates -> Distribution" page on the developer program portal into the keychain access program, then this error went away.
I solved it by
a) go to provisioning profile page on the portal
b) Click on Edit on the provisioning profile you are having trouble (right hand side).
c) Check the Appropriate Certificate box (not checked by default) and select the correct App ID (my old one was expired)
d) Download and use the new provisioning profile. Delete the old one(s).
Apparently there are 4 different causes of this problem:
Your Keychain is missing the private key associated with your
iPhone Developer or iPhone
Distribution certificate.
Your Keychain is missing the Apple Worldwide Developer Relations
Intermediate Certificate.
Your certificate was revoked or has expired.
Online Certificate Status Protocol (OCSP) or Certificate
Revocation List (CRL) are turned on in
Keychain Access preferences
.
After carefully going through the thread here and checking all the solutions proposed by people, I can confidently claim this, after following the steps mentioned on Apple developer docs for creating CSR and mobile provision file, just do this!,
Launch Xcode.
Select window->Organizer
Click this refresh button and that filthy yellow bar will remove instantly.
http://img.skitch.com/20100820-1ngm8an14c6fm3dt7g6j51d2nx.jpg
Trust me, you only have to do this. There is no need to repeat the process again and again to make sure that you doing it the right way. Just press Refresh, enter your login credentials and it's done.
For me it only worked when the certificate and both keys were in the Login keychain. I had created a Development keychain before, but the Xcode Organizer wouldn't find the keys in there. So I moved them back to Login, quit the keychain tool - and voila, the error in Xcode Organizer went away! This was on Snow Leopard 10.6.2 with the 3.1.3 SDK.
For development certificates you can just create a new one and match it to a profile. However for distribution, like when your going to submit to Apple, you cannot do this and must use the distribution certificate the team agent created. The problem is you need the private key on your machine. It's very simple, however, for the team agent who created the certificate to copy the private key to you, below are the instructions from Apple, I hope this helps.
It is critical that you save your private key somewhere safe in the event that you need to develop on multiple computers or decide to reinstall your system OS. Without your private key, you will be unable to sign binaries in Xcode and test your application on any Apple device. When a CSR is generated, the Keychain Access application creates a private key on your login keychain. This private key is tied to your user account and cannot be reproduced if lost due to an OS reinstall. If you plan to do development and testing on multiple systems, you will need to import your private key onto all of the systems you’ll be doing work on.
To export your private key and certificate for safe-keeping and for enabling development on multiple systems, open up the Keychain Access Application and select the ‘Keys’ category.
Control-Click on the private key associated with your iPhone Development Certificate and click ‘Export Items’ in the menu. The private key is identified by the iPhone Developer: public certificate that is paired with it.
Save your key in the Personal Information Exchange (.p12) file format.
You will be prompted to create a password which is used when you attempt to import this key on another computer.
You can now transfer this .p12 file between systems. Double-click on the .p12 to install it on a system. You will be prompted for the password you entered in Step 4.
The best answer I got was exporting your key, instead of just trying to import the cert file.
When you export the key from the keychain that generated the request, you get a Certificates.p12 file, which rolls the keys you need together.
Then import this into the new computer.
With keys like this, it's probably good to keep a rolled, certificate package file, because many times the "public" key, or cert file, is not enough to restore things from.
In my case, I copied the project from my iMac to my Macbook Pro and found out I didn't have my private key installed on the Macbook. So I exported my private key, copied and installed it to the Macbook, and voila it works! I've documented the information here:
http://www.creatistblog.com/2009/09/iphone-developer-provisioning.html
Just a note with Xcode 4: in the organizer there are two different sections in the left pane:
Library > Provisioning profiles
Devices > your device > Provisioning profiles
I was always puttings my provisioning profiles into 2. and even after cleaning and installing properly it was not working. Then I discovered 1. and finally I found the refresh button. If you select 'Automatic device provisioning' in 1. and click on refresh, then everything got validated (no yellow warning in 2. anymore).
Was facing a similar issue yesterday with our CI server. The app extension could not be signed with the error
Code Sign error: No matching provisioning profiles found: No provisioning profiles with a valid signing identity (i.e. certificate and private key pair) matching the bundle identifier XXX were found.
Note: I had created my provisioning profiles myself from Developer portal (not managed by Xcode).
The error was that I had created the provisioning profiles using the Distribution certificate, but the build settings were set to use the developer certificate. Changing it to use Distribution certificate solved the issue.
Summary: Match the certificate used for creating the provisioning profile in build settings too.
Did you try rebooting your Mac and your device? Lame answer, but I always try that first.
I got it working after re-doing everything and then creating an empty project with XCode and building/running it to the device. XCode showed a window asking something like: Do you want to accept the developer certificate. I pressed "Always". Only after this step I got rid of the message "A valid signing identity matching this profile could not be found in your keychain" in Organizer.
Hey guys, I had heaps of trouble with this yesterday. I went through the whole process a few times, requesting a new certificate request from the authority with the assistant, clearing out everything in the portal, uploading the certificate, creating a new profile and downloading everything. No dice.
However, check this out.
First up clear out all the certificates on the portal to start fresh.
After creating the new certificate request with the assistant, press "Show in Finder", and double click that bad boy. You should get a popup for the Certificate Assistant with a screen showing "Please specify the issuing Certificate Authority", etc. If you don't, just close it and double click again.
Now just proceed through the dialog choosing
"Request a certificate from an existing CA" - Continue
Request is "Saved to disk" - Continue
Save it where ever you like, even override the file.
At the end you should see the magic "Creating key pair"
Run over to the KeyChain access and you'll see your keys in there! Upload this certificate to the apple portal and then go through their wizard as normal, everything should work great now.
There are two different certificates for two different provisioning profiles (development and distribution). You have to install BOTH certificates in keychain. In the iPhone Developer Program Portal:
Certificates -> Development -> Download
Certificates -> Distribution -> Download
Double click both certificates. After that both certificates must appear in Keychain.
The answer is this revoke your Current Development Certificate and make a new one. follow the instructions on apples site on how to do so. Its that simple!! I had this exact problem.
Simple steps to get this done:
Start from keychain (which contains your dev key already) on your computer and create a request for certificate. Upload the request to dev site and create the certificate.
Create a profile using the certificate.
Download the profile and drop it on Xcode.
Now all the dots are connected and it should work. This works for both dev and distribution.
I logged into developer account and revoked the development certificate. After revoking and downloading the development certificate i double clicked the newly downloaded certificate and this time Private Key was there under development certificate in KeyChain Access.
A good way to ensure that this happens cleanly is to clean your login keychain completely first.
Also, a really important step is to unlock your keychain before you import the private key and public key
security unlock-keychain -p password ~/Library/Keychains/login.keychain
Import private key into login keychain :
security import PrivateKey.p12 -k ~/Library/Keychains/login.keychain
1 identity imported.
Import public key into login keychain :
security import PublicKeyName.pem -k ~/Library/Keychains/login.keychain
1 key imported.
I had this same problem but, it was due to my setting up "FileVault" on my Mac. I went into my keychain and set "login" to be my default and that fixed it.
"This was a bug on the Apple portal site. They were missing a necessary field in the provisioning profile. They fixed this bug late on 6/16/09. "
I don't know whether they really skipped it or if my eyes were just glazing over but....
Just in case anybody else is overlooking the same things that I did....
just as when you were developing and testing...
1) You need a DISTRIBUTION << CERTIFICATE >>
2) You need a DISTRIBUTION << PROVISIONING PROFILE >>
That is TWO STEPS on the portal in order to get the thing signed.
There I was, having created the developer CERTIFICATE and copied it to the Mobile Provisions folder, wondering why it didn't work.
As soon as I had the provisioning profile in place
* BINGO *
I had the exact same problem and tried everything. For whatever reason the solution was that all my certificates had migrated to a keychain called "microsoft_intermediate_certificates". As it probably happened during an Xcode upgrade I have absolutely no idea why, but it may help somebody.
I moved all content of the Microsoft keychain to the login keychain and everything went back to normal.
I finally got this to work after, like, 4 separate tries after incurring the same problem that was originally posted. So here's what happened, I am not sure if this is an old issue now (2009-07-09), but I will post anyway in case it is helpful to you. What worked for me... might work for you...
start anew and delete the old private keys, public keys, and certificates in the keychain
go through the whole process, request a certificate from a certificate authority, get a new public key, a new private key, and a new certificate. Note: when it worked I had exactly one private key, one public key, and one certificate
Make a new provisioning profile (which utilizes the certificate that you just made) and put that in your organizer window in Xcode. Delete all the old BS.
Run it.
Hopefully this helps.
Everyone here is very wrong. All you need is to follow the steps that Apple provides in Managing Your Digital Identities.
It instructs you to export your certificates through Xcode and reimport through Xcode. It works great, but make sure your username is the same on both computers or it will fail.
I just spent several hours on this fershlugginer issue, which cropped up after renewing my development license. To reiterate, everything was working without a hitch, then (thank you Apple!) it all got screwed up and stayed screwed up. None of the Apple official troubleshooting steps (linked to above) or possible resolution steps mentioned here resolved the issue for me.
What finally did it for me was to delete both my development and distribution certificates, revoke them in the provisioning portal, and then let Xcode AUTOMATICALLY refresh/issue them. Nothing else, in any order, was able to get both required certificates into my keychain with the private key correctly attached.
Here is what I did.
Make sure your certificates have not expired, make sure you delete all the expired ones. Get new ones etc, Once you have make sure all that is the way it should be, then focus on your project files.
in finder , go to your .xcodeproj files then show package contentes.
open project.pbxproj in xcode or textedit.
find every refrense to PROVISIONING_PROFILE and remove the GUID, just leave empty ""
Depending on your project you should have about 12+ refrences, remove all of the GUIDS.
Save file, then reopen your project in XCODE
Re select the correct provision profiles for all possible code signings( they should not all be the same)
Build your project and you should be good to go.
I think Xcode gets confused some how, and removing all the Provision Profiles from the project.pbxproj and then reselecting a valid profile will set it striaght.
If you have new mac you can go to
IOS developer center --> Provisioning Portal --> Certificates --> Development --> Revoke and create new certificate. My problem solved. My error is "Code Sign error: The identity 'iPhone Developer' doesn't match any valid, non-expired certificate/private key pair in your keychains"
What you need:
1) A private and a public key.
They have this symbol in your keychain:
2) A certificate made from the signing request of those keys
3) A provisioning profile linked to that certificate
Let's say you change computers and want to set up Xcode with provisioning profiles again. How do you do it?
Open Xcode, press ctrl + O to open the Organizer, and delete all provisioning profiles you might have installed already.
Open keychain access, and create a signing request which you save to file (when you create the request, a private and public key is created in your keychain).
Create/Update a certificate in the provisioning portal by sending apple this signing request
Download and install the newly created certificate.
Revoke your provisioning profiles and update them with the new certificate.
Download and install the newly updated provisioning profiles.
I have a company iphone dev account.
According to the doc, only the team-agent is allowed to submit a distribution cert and download the distribution provisioning profile.
Can a team only have 1 Team Agent?
Also, if that is the case, is there a way around this to allow multiple devs the option to build a distributed version of the app?
I have another developer who I would like to build and submit the app to itunes. I tried giving him the distribution cert and distribution profile. When he dragged and dropped them into xcode, and checked out windows->organize, it complains
"assigning identity matching this profile cannot be found in your keychain"
So this leads me to believe I need to get my key chain credentials on his machine. I tried exporting a private key and giving it to him, but he was unable to install it.
Is there anything else I can do?
I honestly thing its really silly if apple expects one developer to be responsible for building all apps for a company. Hopefully I'm wrong and there is a way to get multiple developers access to building a distribution of an app.
Thank you
NOTE: This process is heavily simplified in XCode 4 (although not personally tested by me) with importing and exporting of developer profiles through the Organizer window (Developer Profile section).
This is how I got it working.
1) Login to the iOS Provisioning Portal as the Agent.
2) Run through the process of making the Distribution Certificate Signing Request / Provisioning Profile: http://developer.apple.com/iphone/manage/distribution/index.action. These instructions a re super long, but pretty clear and necessary.
3) Pay extra attention to the section "Obtaining your iOS Distribution Certificate" > "Saving your Private Key and Transferring to Other Systems" on that page. It describes how to generate and save the Agent's .p12 file.
4) Now invite other developer(s) to be part of the team in the Member Center: https://developer.apple.com/membercenter/index.action#invitations
5) Back in the iOS Provisioning Portal, download the app's Distribution Certificate (Certificates > Distribution (tab)). Should be named "distribution_identity.cer"
6) Now download the Distribution Provisioning Profile (Provisioning > Distribution (tab)). Should be named "whatever_you_named_it.mobileprovision"
7) Email those two files along with the Agent's .p12 file to your other developer machine.
8) On the developer's machine, double-click the distribution_identity.cer file and it should load up in Keychain Access
9) Drag the .p12 file to Keychain and it should automatically put the identity under the certificate
10) Drag the whatever_you_named_it.mobileprovision file into XCode.
11) In each of the Project and Build's Info windows, set the Code Signing Identity to the "iPhone Distribution - Your Company" identity which should now be available.
Hope that helps. Rob
Just another tutorial step by step, but slightly different, the certificates have been already installed in the team's agent keychain, so it explains how to export the .p12 files from the keychain:
how-to-share-an-ios-distribution-certificate
You definitely should be able to build your app with a distribution certificate and profile on your coworker's machine.
Are you sure that the distribution certificate and provisioning profile are installed correctly? If you can build apps with the development certificate but not the deployment one, check to make sure that everything's properly installed in the keychain and that the correct provisioning profile is selected in the settings for the active target.
You can copy the private key in this way, but it's really UNSAFE:
Give him your login.keychain file (located in ~/Library/Keychains/), and let him open it with Keychain.app, and ask him to drag your private key to his login.keychain.
Apple also said you should keep your private key secured, if you need to reinstall your system, make sure you backup the login.keychain file.