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flutter - How to fix "NoSuchMethodError: The getter 'path' was called on null" on ImagePicker Cancel Button?

Guys I am using ImagePicker plugin to access the images in my app, but if I decide to cancel it I get this error NoSuchMethodError: The getter 'path' was called on null. Any idea on How to fix it?

here is my ImagePicker:

FlatButton(
          onPressed: () async {
            final PickedFile file =
                await picker.getImage(source: ImageSource.camera);
            editImage(file.path);
          },
          child: Text('Camera'),
        ), 

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Try

editImage(file?.path?"");

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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