Incorrect use of ParentDataWidget

[stoto34]

Hello !

I tested this library with my Epson TM printer but I have one error when I run it :

The following assertion was thrown while applying parent data.:
Incorrect use of ParentDataWidget.

The ParentDataWidget Expanded(flex: 1) wants to apply ParentData of type FlexParentData to a RenderObject, which has been set up to accept ParentData of incompatible type BoxParentData.

Usually, this means that the Expanded widget has the wrong ancestor RenderObjectWidget. Typically, Expanded widgets are placed directly inside Flex widgets.
The offending Expanded is currently placed inside a Padding widget.

The ownership chain for the RenderObject that received the incompatible parent data was:
  Column ← Expanded ← MediaQuery ← Padding ← SafeArea ← _BodyBuilder ← MediaQuery ← LayoutId-[<_ScaffoldSlot.body>] ← CustomMultiChildLayout ← AnimatedBuilder ← ⋯
When the exception was thrown, this was the stack

Any idea to solve this ? Thank you very much for this library 

[mrtungdev]

Please check your widget :)

[stoto34]

I used the sample provide here https://github.com/ImTung/flutter_epson_epos/blob/main/example/lib/main.dart

[mrtungdev]

oh so sorry. What's your flutter version? did you run release mode?

I'll update the example when this package is stable. Thank you so much

[stoto34]

No worries. I'm using Flutter 2.5.1 and I run it in debug mode on an emulator device (API 27)
Thank you very much for your work, very usefull !