Error in transporter to upload the pkg to app store connect

Hello, I am new for apple developer. I see the problem and I think apple show me very few error message and I do not know to start with it.

I was created my app by python and build to .app then package it to pkg by the pkgbuild.

I have problem to upload the pkg file to app store connect by transporter both CLI and GUI.

when I try to upload it by GUI, I see this message.

Cannot find the ITMSP file: (null). (11)`

and when I upload my pkg by the CLI, I found more message but still cannot start with it as well.

[2026-08-23 09:57:58 ICT] <main> DEBUG: Registered file for monitoring: /Users/xxxxxxxxx/.itmstransporter/temp/tx-xxxxxxxxx.pkg-swinfo.plist16166255377348903097.tmp with action CANCEL_ALL

[2026-08-23 09:57:58 ICT] <main> DEBUG: Started file monitor for 1 file(s)

[2026-08-23 09:57:58 ICT] <main>  INFO: Starting upload for package b7ac46de-45fe-4fa6-b0f6-6fea35038d8f-tx-xxxxxxxxx.pkg-swinfo.plist16166255377348903097.tmp.

[2026-08-23 09:57:58 ICT] <main>  INFO: Computing total size of files to upload ...

[2026-08-23 09:57:58 ICT] <main> DBG-X:   adding file for % complete logging: tx-xxxxxxxxx.pkg-swinfo.plist16166255377348903097.tmp , size: 7704460

[2026-08-23 09:57:58 ICT] <main> DEBUG: Setting total size of files for upload to: 7704460

[2026-08-23 09:57:58 ICT] <main>  INFO: Done computing total size of files to upload.

[2026-08-23 09:57:58 ICT] <main>  INFO: Starting checksum calculations for 1 file(s) using up to 1 thread(s)...

[2026-08-23 09:57:58 ICT] <main>  INFO: Checksum calculations are complete, elapsed time: 0 d 0h 0m 0s.

[2026-08-23 09:57:58 ICT] <main>  INFO: Creating reservations for build upload: b7ac46de-45fe-4fa6-b0f6-6fea35038d8f

[2026-08-23 09:57:58 ICT] <main> DEBUG: creating upload file...

[2026-08-23 09:57:58 ICT] <main> DEBUG: SMART-CLIENT: getCurrent(); using pinned data center = contentdelivery01.itunes.apple.com

[2026-08-23 09:57:58 ICT] <main>  INFO: Package upload progress: 0.00% completed

[2026-08-23 09:57:58 ICT] <main>  INFO: Transfer Metrics Summary:

[2026-08-23 09:57:58 ICT] <main>  INFO:     bytes transmitted: 0

[2026-08-23 09:57:58 ICT] <main>  INFO:     tx-xxxxxxxxx.pkg-swinfo.plist16166255377348903097.tmp transfer metrics:

[2026-08-23 09:57:58 ICT] <main>  INFO:         bytes transmitted: 0

[2026-08-23 09:57:58 ICT] <main>  INFO: Starting checksum calculations for 1 file(s) using up to 1 thread(s)...

[2026-08-23 09:57:58 ICT] <main>  INFO: Checksum calculations are complete, elapsed time: 0 d 0h 0m 0s.

[2026-08-23 09:57:58 ICT] <main>  INFO: Creating reservations for build upload: b7ac46de-45fe-4fa6-b0f6-6fea35038d8f

[2026-08-23 09:57:58 ICT] <main> DEBUG: creating upload file...

[2026-08-23 09:57:58 ICT] <main> DEBUG: SMART-CLIENT: getCurrent(); using pinned data center = contentdelivery01.itunes.apple.com

[2026-08-23 09:57:59 ICT] <main> DEBUG: Stopped file monitor

[2026-08-23 09:57:59 ICT] <main> DEBUG: Transport HTTP failed after 0 bytes, trying next transport. Error: could not upload file: tx-xxxxxxxxx.pkg-swinfo.plist16166255377348903097.tmp

[2026-08-23 09:57:59 ICT] <main> DEBUG: Upload phase transition: CLOSED -> INITIAL

[2026-08-23 09:57:59 ICT] <main> ERROR: All transport types failed for file: tx-xxxxxxxxx.pkg-swinfo.plist16166255377348903097.tmp



Package Summary:

 

1 package(s) were not uploaded because they had problems:

	/Users/xxxxxxxxx/xxxxxxxxx/../xxxxxxxxx_Image/xxxxxxxxx.pkg - Error Messages:

		All transport types failed for file: tx-xxxxxxxxx.pkg-swinfo.plist16166255377348903097.tmp

[2026-08-23 09:57:59 ICT] <main> DBG-X: Returning 1

Not too sure if anyone ever see my issue and how you solved it?

Answered by DTS Engineer in 903544022

I don’t think you’ll find the answers you seek here on the Apple Developer Forums. Our focus is on Apple APIs and tools, and the issue you’re hitting is very much tied to your use of third-party tooling. In cases like that you need to either:

  • Seek help from support resource for that tooling.
  • Or if the tooling is open source, investigate the issues yourself.

On the Apple side of things, I recommend that you start by using the Xcode to create a test project and upload that using the Xcode organiser. You can then use the organiser to export that app, package it using command-line tools, and then upload it using altool. See Packaging Mac software for distribution for packaging instructions. I suspect that’ll work successfully and, if it does, you can use it as a baseline to drive your investigation of the issue you’re hitting with your third-party tooling.

Share and Enjoy

Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

I am new for apple developer.

created my app by python

It's probably not a good idea for a new developer to attempt what is probably one of the most difficult technological achievements possible.

Apple has a wealth of information on how to write apps in Swift and SwiftUI. I recommend that approach.

The thing is, my app will support on Windows OS and Mac OS. my code is universal on Windows/ Linux and Mac, this is my target.

so I developed this app from Python+Ruby. I have no issue on another store, just this Mac store that I could not upload my package.

I don’t think you’ll find the answers you seek here on the Apple Developer Forums. Our focus is on Apple APIs and tools, and the issue you’re hitting is very much tied to your use of third-party tooling. In cases like that you need to either:

  • Seek help from support resource for that tooling.
  • Or if the tooling is open source, investigate the issues yourself.

On the Apple side of things, I recommend that you start by using the Xcode to create a test project and upload that using the Xcode organiser. You can then use the organiser to export that app, package it using command-line tools, and then upload it using altool. See Packaging Mac software for distribution for packaging instructions. I suspect that’ll work successfully and, if it does, you can use it as a baseline to drive your investigation of the issue you’re hitting with your third-party tooling.

Share and Enjoy

Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

Error in transporter to upload the pkg to app store connect
 
 
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