Hey there! Let's work through this Xcode archive export issue you're facing. Based on the error message you shared ("No applicable devices found"), here are practical, step-by-step fixes that have helped many developers resolve this problem:

• Validate your export configuration
  When you get to the export step in Xcode's Organizer, double-check the distribution option you've selected. If you're targeting physical iOS devices, ensure you pick either Ad Hoc or Development (depending on your use case), and confirm that the associated provisioning profile includes the UDIDs of the devices you want to support. Xcode sometimes fails to auto-select the correct profile, so manually choosing the right one can resolve this.

• Refresh your Apple Developer assets
  Head to Xcode > Settings > Accounts, select your Apple ID, then click Manage Certificates to ensure your signing certificates are up-to-date. Next, click Download Manual Profiles to pull the latest provisioning profiles from Apple's developer portal. Outdated or missing profiles are a common culprit for this device recognition error.

• Clean and rebuild your archive
  Corrupted build cache can cause unexpected issues. First, clean your build folder by going to Product > Clean Build Folder (hold the Option key to reveal this option if you only see "Clean"). Then delete the problematic archive from the Organizer, rebuild your project, and create a brand new archive. This clears out any stale data that might be interfering with the export process.

• Check Xcode and deployment target compatibility
  Make sure you're running the latest stable version of Xcode—older versions may have bugs that prevent proper device detection. Also, verify that your project's iOS deployment target is not higher than the iOS version installed on the devices you're targeting. If your deployment target is too new, Xcode won't recognize those devices as compatible.

• Troubleshoot connected devices (if applicable)
  If you're exporting directly to a connected physical device, confirm the device is unlocked, properly plugged in, and recognized by Xcode. You can check this in the Window > Devices and Simulators window. Try unplugging and re-plugging the device, or restarting both the device and Xcode, to fix any connectivity glitches.

内容的提问来源于stack exchange，提问作者Bruno