I have been trying to notarize an app since yesterday tried about 20 times at various times of the day.
Most times it stops during the upload and produces an error message
"Couldn't communicate with a helper application" which occurs at various places while downloading.
Three times the upload appeared to complete but then produced an error "This operation could not be completed (SotoS3.S3ErrorType.Multipart.error.1
I then looked in the status log which had several entries:
Prepared archive for uploading (green check to left) Upload failed (red x to left) Notary error (red x to left) The operation couldn't be completed (SotoS3.S3ErrorType...) In Progress (grey timer icon to left)
I believe I understand what happened here, after the export I opened the export and the attempted to notarize just the .app which notary tool refused to do so I placed it in a .zip which it then notarized. I was going to retry that today, however since it was early morning I decided to give one more try to letting Xcode notarize and it worked first thing this morning (after 30-40 unsuccessful attempts over the past week) so as of this point the issue is resolved. I'd strongly request that before Xcode 16 is released that Apple take a long look at the notarization process and make the upload more forgiving. When NotaryTool runs it shows the percent completion of the upload whereas Xcode just errors if it encounters a problem. As in. the car of other internet file transmissions, Xcode should be more serious about retrying as it gives up too soon meaning the entire file must be re-transmitted. The notarization process should also give meaningful error message such as "Could not upload entire file" or "Entire file successfully uploaded but could not notarize due to the following problem with uploaded file .....