screenshot Invalid image dimensions

[ERROR:flutter/lib/ui/ui_dart_state.cc(199)] Unhandled Exception: Exception: Invalid image dimensions.
E/flutter (10185): #0      ScreenshotController.capture.<anonymous closure> (package:screenshot/screenshot.dart:58:9)

I used Transform and Positioned in Stack. Using this a corner of an image goes outside.

Jul 29 '21 20:07 ranahyder87

Looks like the image corner is not an issue, this exception comes on and off.

Jul 29 '21 20:07 ranahyder87

I'm getting this error every execution with example code. Running from a background task. E/BackgroundWorker(20720): errorCode: error, errorMessage: Exception: Invalid image dimensions.

ScreenshotController screenshotController = ScreenshotController();
await screenshotController.captureFromWidget(
  Container(
      height: 200,
      width: 200,
      padding: const EdgeInsets.all(30.0),
      decoration: BoxDecoration(
        border: Border.all(color: Colors.blueAccent, width: 5.0),
        color: Colors.redAccent,
      ),
      child: Text("This is an invisible widget")
  ),
  pixelRatio: 1.0,
).then((Uint8List image) async {
  if (image != null) {
    final imagePath = await File('$directory/$filename').create();
    await imagePath.writeAsBytes(image);
    print('BACKGROUND: img saved.');
  }
});