I'm trying to add signing certificate from developer.apple.com to my keychain but I'm getting to have error says "An error occurred. Unable to import certificate name. Error -25294". Certificate is valid and I can not do anything with this error. Any idea what can be the reason for this error?

I was reading a tutorial for obtaining an Apple Developer ID Installer certificate in order to distribute my .pkg outside the Mac App Store. However in the Certifcates/add page I'm am unable to see the required certificate (Developer ID Installer). Do I need to get some extra permissions to view this option or was it removed/moved to somewhere else?

I have tried everything and still I am getting this. Just for a test I created a new app (Master-Detail template Xcode 11.5) I have created an entry in the iTunes Connect to receive the app upon archiving and uploading. I regenerated all new certificates for iOS Development and Distribution. I created all new Provisioning profiles. The Dev profile builds deploys and runs on my device The Dist profile builds but when I select the distribution profile I get the "Profile doesn't include the com.apple.application-identifier entitlement." error. When I download the profile within Xcode all looks good for the distribution profile: App ID: matches correctly Certificated: 1 Included includes the new signing certificate "iPhone Distribution...." Capabilities: 3 Included Includes Game Center, In-App Purchase, and Keychain Sharing Entitlements: 5 Included Includes application-identifier, keychain-access-groups, beta-reports-active, get-task-allow, and com.apple.developer.team-identifier. Im not sure what is going on. This is a standard process I have performed for quite a while. As a matter of fact I just submitted 3 applications last Sunday. Thank you for any suggestions.