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Getting an error Argument type 'Uint8List' can't be assigned to the parameter type 'File'

July 21, 2022

I was trying to upload my image in firebase storage and got the error The argument type ‘Uint8List’ can’t be assigned to the parameter type ‘File’. I am a beginner. Here is my code, please help me resolving this issue.

Future<String> uploadImageToStorage(
      Uint8List image, String productUid) async {
    Reference storageRef = storage.ref().child('products').child(productUid);
    UploadTask uploadFile = storageRef.putFile(image);
    TaskSnapshot taskSnapshot = await uploadFile;
    Future<String> imageUrl = taskSnapshot.ref.getDownloadURL();

    return imageUrl;
  }

>Solution :

Change the putFile() to putData() and pass the image. Here is an updated code, let me know if this works for you.

Future<String> uploadImageToStorage(
      Uint8List image, String productUid) async {
    Reference storageRef = storage.ref().child('products').child(productUid);
    UploadTask uploadFile = storageRef.putData(image);
    TaskSnapshot taskSnapshot = await uploadFile;
    Future<String> imageUrl = taskSnapshot.ref.getDownloadURL();

    return imageUrl;
  }