Image cannot be null using FadeInImage and url [Flutter]

Hello so I added a way to display my url images in a list but because Im fetching this information from public API some of them are missing URLs and errors occur, I tried using placeholder and image errorbuilder but that didnt help

Here is my code:

child: FadeInImage.assetNetwork(
                          height: 100,
                          width: 100,
                          fit: BoxFit.fill,
                          image: newsList[index].urlToImage,
                          placeholder: 'images/placeholder.png',
                          imageErrorBuilder: (context, error, StackTrace) {
                            return const Image(
                                height: 100,
                                width: 100,
                                image: AssetImage("images/placeholder.png"));
                          },
                        ),

and Error:

══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following assertion was thrown building:
'package:flutter/src/widgets/fade_in_image.dart': Failed assertion: line 234 pos 15: 'image !=
null': is not true.

Updated Code:

child: newsList[index].urlToImage == null
                            ? Container(
                                decoration: BoxDecoration(
                                  image: DecorationImage(
                                    image: AssetImage("images/placeholder.png"),
                                  ),
                                ),
                              )
                            : FadeInImage.assetNetwork(
                                height: 100,
                                width: 100,
                                fit: BoxFit.fill,
                                image: newsList[index].urlToImage,
                                placeholder: 'images/placeholder.png',
                                imageErrorBuilder:
                                    (context, error, StackTrace) {
                                  return const Image(
                                      height: 100,
                                      width: 100,
                                      image:
                                          AssetImage("images/placeholder.png"));
                                },
                              ),

and error message: