No valid iOS code signing keys found in keychain. You need to request a codesigning certificate

Issue

So I have build a Xamarin Forms application, that I now want to test on a physical iOS device. The debugger successfully run my program, but unfortunately I run into problems when I deploy my program on a physical iPhone.

I did the following in order to deploy my app:

1. Followed this tutorial in order to create a Free provisioning profile for my app (https://docs.microsoft.com/en-us/xamarin/ios/get-started/installation/device-provisioning/free-provisioning?tabs=windows) (successfully runs xcode 1 view app, and installs provisioning profile on phone)
2. Switched xamarin to debug on a phyiscal device

The bundle identifier naturally matches, and I have done the following to solve the issue:

• Set the value of "CodesignEntitlements" from the .csproj to null

Still no success. I'm curious why Xamarin asks for a code signing key, while I'm still just debugging..

any help is much appreciated

Solution

After long struggling I just noticed that Automatic provisioning is not working anymore with my project but I just added Debug codesign key manually in .csproj of iOS project and I replaced "iPhone Developer" into "Apple Development: yourmail.icloud.com (XYZ12345678)" You can find this identifier in Your Keychain

Answered By - Bartosz Jastrzębski