Build fails at "Fetch signing files" with private key error

[KHANABBA]

Hi Codemagic team,
I need some help with a build that is constantly failing at the "Fetch signing files" step.
Build URL: https://codemagic.io/app/688013d1c2784b6aaddf5edc/build/688058322ce3cde7e81b1290?open-step=build-step-2%7Cbuild-step-3

The error message is:
Cannot save Signing Certificates without certificate private key

I have already tried all of the following troubleshooting steps:

• I am using the App Store Connect API Key for automatic code signing.
• I have confirmed my environment variables are set correctly with the names APP_STORE_CONNECT_PRIVATE_KEY, APP_STORE_CONNECT_KEY_IDENTIFIER, and APP_STORE_CONNECT_ISSUER_ID.
• I have also revoked all Apple Distribution certificates from my Apple Developer account to let Codemagic create a new one from scratch, but the same error still happens.
  It seems like the build machine is unable to generate or associate a private key with the certificate for some reason.
  Could you please check the internal logs for my build to see what's going wrong? Thank you!

[dtrdic]

Hello @KHANABBA, when using automatic codesigning, you also need to provide a CERTIFICATE_PRIVATE_KEYenvironement variable.
But you didn't provide it, and that's why you are seeing this error message;
Cannot save Signing Certificates without certificate private key

Codemagic will use this private key to install or create a valid iOS Distribution certificate in your Apple Developer account. Without it, the build cannot proceed with automatic code signing.

You can create a new 2048 bit RSA key by running the command below in your terminal:

​ssh-keygen -t rsa -b 2048 -m PEM -f ~/Desktop/ios_distribution_private_key -q -N ""

Now open the file ios_distribution_private_key with a text editor and copy the entire contents of the file, including the -----BEGIN RSA PRIVATE KEY----- and -----END RSA PRIVATE KEY----- tags in an environment variable called CERTIFICATE_PRIVATE_KEY

Then re-run the build.

Let me know how it goes

[dtrdic]

I'm tentatively closing the discussion since we haven't heard back from you. You can open the discussion again by replying to this message or opening a new discussion.