ERROR:flutter/runtime/dart_vm_initializer.cc(41) Unhandled Exception: Null check operator used on a null value

Question

I am getting error as described in image. You can check error with line. Actually, I am trying to add two options in modalBottomSheet. the first is Camera and second is Gallery. Then if gallery is selected so, I want to navigate to the StatusImage() page where I am passing argument of selected file. So, when I select image then it is not navigating to the StatusImage() and showing error which is in terminal inside image.

This is takePhoto() method.

Future<PickedFile?> takePhoto(ImageSource source) async {
    // ignore: deprecated_member_use
    final pickedFile = await picker.getImage(source: source);

    return pickedFile;
  }

This code is inside onTap:

                        Navigator.pop(context);
                        PickedFile? imageFile =
                            await takePhoto(ImageSource.gallery);
                        setState(() {
                          imageFile != null
                              ? Navigator.push(
                                  context,
                                  MaterialPageRoute(
                                      builder: (context) => StatusImage(
                                            name: userName,
                                            userId: currentUserId,
                                            imageFile: File(imageFile.path),
                                          )))
                              : Container();
                          imageFile;
                        });

Let me know where is problem exactly.