[Flutter] Flutter/Flutter.h file not found and other file-not-found errors from cached...

I'm encountering multiple file-not-found errors in Xcode when trying to build my Flutter project for iOS. The primary issue seems to be with Flutter/Flutter.h not being found, followed by several other errors related to cached libraries such as sqflite, package_info_plus, and geocoding_ios.

This issue has occurred in a loop multiple times. I’ve tried several solutions, including:

• Running flutter clean
• Reinstalling Flutter dependencies with flutter pub get
• Updating to the latest Flutter SDK
• Removing and recreating the iOS build folder (ios/)
• Verifying Xcode is updated and all necessary command-line tools are installed.

Here's a snippet of the errors:

Lexical or Preprocessor Issue (Xcode): 'Flutter/Flutter.h' file not found /Users/.pub-cache/hosted/pub.dev/sqflite-2.3.0/ios/Classes/SqfliteImport.h:10:8

Lexical or Preprocessor Issue (Xcode): 'Flutter/Flutter.h' file not found /Users/.pub-cache/hosted/pub.dev/package_info_plus-4.1.0/ios/Classes/FLTPackageInfoPlusPlugin.h:4:8

Error (Xcode): /Users/.pub-cache/hosted/pub.dev/geocoding_ios-2.3.0/ios/Classes/GeocodingHandler.h: No such file or directory

Error (Xcode): /Users/.pub-cache/hosted/pub.dev/geocoding_ios-2.3.0/ios/Classes/Extensions/CLPlacemarkExtensions.h: No such file or directory

Error (Xcode): /Users/.pub-cache/hosted/pub.dev/sqflite-2.3.0/ios/Classes/SqfliteDatabase.h: No such file or directory

Error (Xcode): /Users/.pub-cache/hosted/pub.dev/sqflite-2.3.0/ios/Classes/SqflitePlugin.h: No such file or directory

Error (Xcode): /Users/.pub-cache/hosted/pub.dev/sqflite-2.3.0/ios/Classes/SqfliteOperation.h: No such file or directory

Error (Xcode): /Users/.pub-cache/hosted/pub.dev/sqflite-2.3.0/ios/Classes/SqfliteImport.h: No such file or directory

Could not build the application for the simulator. Error launching application on iPhone 15.
​

I expected these steps to resolve the build errors, but they keep reoccurring. How can I permanently fix this issue and prevent it from happening repeatedly?

Environment

Flutter SDK path: /Users/sdk/flutter/bin/flutter

Project path: /Users/vedic/vedicconnect_user/ios/Runner.xcodeproj

Flutter version: 3.24.3

Dart 3.5.3

What am I missing in the setup, or is there a specific step to ensure the cached libraries are properly integrated into the iOS build process?

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