I want to create a ‘social foodapp’ for school where you can add a picture, some text
and add it to the feed.

` Future _submitPost() async {
print(‘Submitting post…’);
final FirebaseFirestore db = FirebaseFirestore.instance;

    // Voeg de post toe aan de Firestore-collectie "posts"
    await db.collection("posts").add({
     'text': _postController.text,
     'imageData': _imageData,
     'timestamp': Timestamp.now(),
    }).then((doc) {
      print('Post submitted successfully with ID: ${doc.id}');
   }).catchError((error) {
     print('Error submitting post: $error');
  });`

I cannot get past the first errorhandling (‘Submitting post…)
Please help a newbie out

Post a social-media post on the feed. After pushing post it should be in the overview/feed but nothing appears