Flutter dynamic image choose and load not working. Exception Asset not found

Question

I'm trying to let the user choose an image, copy it to the internal app folder, and then display it back. I'm getting an error

Unable to load asset: /data/user/0/com.my.app/app_flutter/IMG-20230923-WA0001.png 
Exception: Asset not found

void _getImage() async {
    // Pick an image from the user gallery
    ImagePicker imagePicker = ImagePicker();
    final imageFile = await imagePicker.pickImage(source: ImageSource.gallery);

    if (imageFile != null) {
      // Get the application directory
      final String appDirPath = (await getApplicationDocumentsDirectory()).path;

      setState(() {
      int fileNameIndex = imageFile.path.lastIndexOf("/");
      cardBackgroundPath = 
          "$appDirPath${imageFile.path.substring(fileNameIndex)}";
      });

      File imageFileTemp = File(imageFile.path);
      try {
        // Copy the source file to the destination
        await imageFileTemp.copy(cardBackgroundPath);

        // Check if the file was successfully copied
        if (File(cardBackgroundPath).existsSync()) {
          debugPrint('File copied to: $cardBackgroundPath');
        } else {
          debugPrint('Failed to copy the file.');
        }
      } catch (e) {
        // Handle any errors that may occur during the copy operation
        debugPrint('Error copying the file: $e');
      }

      // imageFile.saveTo(cardBackgroundPath);
      debugPrint("CardbackgroundPath: $cardBackgroundPath");
    }

• I have verified that the file exists in the right path.
• I also get the below debugPrint output: I/flutter (17123): File copied to: /data/user/0/com.example.ritual/app_flutter/IMG-20230923-WA0001.jpg
• Static loading of images are working fine, that is images put into the asset folder and loaded while coding the application, and adding those filepaths into the pubspec.yaml file
• I am using Image.asset(, fit:BoxFot.cover, <width & height>), attributes to display the image

Assets in pubspec.yaml

  # To add assets to your application, add an assets section, like this:
  assets:
    - assets/
    - assets/icons/
    - assets/fonts/
    - assets/images/