Xamarin.Forms项目iOS真机运行失败报AggregateException求助

Hey there, let's tackle this frustrating issue you're facing with your neoFly_Montana.iOS project suddenly failing to run on physical devices (while working fine on simulators)! That PList parsing error is the key clue here—let's walk through actionable fixes step by step:

• Audit your Info.plist for invalid entries
  The error explicitly states a failure to parse PList data, so start by opening your iOS project's Info.plist file. Look for:

  • Empty values in required fields (like bundle identifier or display name)
  • Malformed syntax (missing quotes, typos in key names, or invalid value formats)
  • Custom entries (like URL schemes, permission descriptions) that don't follow Apple's PList standards
    Even a tiny mistake here can break the parsing process.

• Clean and rebuild your project (with manual cleanup)
  Corrupted build artifacts are a common culprit for random deployment failures:

  1. Right-click the neoFly_Montana.iOS project and select Clean
  2. Navigate to your iOS project directory and delete the bin and obj folders manually
  3. Restart your IDE (Visual Studio/Xamarin Studio)
  4. Rebuild the iOS project, then attempt to deploy to your physical device again

• Verify provisioning profiles and entitlements
  Mismatched or corrupted signing assets can trigger PList-related errors:

  • Go to your iOS project properties → iOS Bundle Signing
  • Ensure the correct provisioning profile is selected for your physical device (double-check that it includes your device's UDID)
  • If you're using an Entitlements.plist, confirm all enabled entitlements match what's configured in your provisioning profile—no extra or mismatched entries allowed

• Update Xamarin.iOS and related tools
  Outdated tooling can cause unexpected parsing bugs:

  • In Visual Studio, go to Tools → Options → Xamarin → iOS Settings and check for Xamarin.iOS updates
  • On a Mac, ensure Xcode is up to date (via the App Store)
  • Install any available IDE updates to rule out version-related issues

• Roll back recent project changes
  Since this issue popped up "out of the blue," think about any recent changes:

  • Did you add a new NuGet package?
  • Modify build settings or Info.plist entries?
  • Update any dependencies?
    Temporarily reverting these changes can help pinpoint exactly what broke the deployment.

If none of the above works, try creating a blank Xamarin.Forms iOS project and deploy it to your physical device. If that succeeds, gradually copy your code, resources, and settings into the new project to isolate the problematic component.

内容的提问来源于stack exchange，提问作者Joyce de Lanna