" task.future.then " keeps throwing an error in my Flutter code

Question

This is my code -

    Future uploadImage() async {
var randomno = Random(25);
final StorageReference firebaseStorageRef = FirebaseStorage.instance
    .ref()
    .child('profilepics/${randomno.nextInt(5000).toString()}.jpg');
StorageUploadTask task = firebaseStorageRef.putFile(selectedImage);

task.future.then((value) {
  setState(() {
    userManagement
        .updateProfilePic(value.downloadUrl.toString())
        .then((val) {
      setState(() {
        profilePicUrl = value.downloadUrl.toString();
        isLoading = false;
      });
    });
  });
}).catchError((e) {
  print(e);
});
  }

This is the error it gives -

The getter 'future' isn't defined for the type 'StorageUploadTask'. Try importing the library that defines 'future', correcting the name to the name of an existing getter, or defining a getter or field named 'future'.

Although i have already imported dart:async and dart:io Please help, thanks

Peter Haddad Peter Haddad · Accepted Answer · 2020-06-29T07:17:29

StorageUploadTask doesnt have a property called future, you have to use onComplete the following:

final StorageReference firebaseStorageRef = FirebaseStorage.instance
    .ref()
    .child('profilepics/${randomno.nextInt(5000).toString()}.jpg');
StorageUploadTask task = firebaseStorageRef.putFile(selectedImage);
task.onComplete.then((value) {
  setState(() {
    userManagement
        .updateProfilePic(value.ref.getDownloadURL().toString())
        .then((val) {
      setState(() {
        profilePicUrl = value.ref.getDownloadURL().toString();
        isLoading = false;
      });
    });
  });

https://github.com/FirebaseExtended/flutterfire/blob/master/packages/firebase_storage/lib/src/upload_task.dart#L28

" task.future.then " keeps throwing an error in my Flutter code

2 Answers