Uploading ipa using the Appuploader upload tool will encounter some errors. The following explains the solutions to common error prompts.

1, the developer account to open dual authentication is not configured with a dedicated password error

Report an error  app-specific password

C:\Users\ADMINI~1\AppData\Local\Temp\au\itmsp\1346411136.itmsp – Error Messages:

Sign in with the app-specific password you generated. If you forgot the app-specific password or need to create a new one, go to appleid.apple.com



Need to configure a app-specific password to re-transmit


Appuploader uses a app-specific password to upload ipa configuration tutorial



2, the version number is repeated, error ERROR ITMS-4238


If you have previously uploaded an ipa such as version 1.0, if you are unable to upload it by using the 1.0 version number again, you need to increase the version number, such as 1.1.

Report an error


C:\Users\ADMINI~1\AppData\Local\Temp\au\itmsp\1366177828.itmsp – Error Messages:
ERROR ITMS-4238: “Redundant Binary Upload. You鈥檝e already uploaded a build with build number ‘201803301650’ for version number ‘2.0.8’.


Upload ipa error ERROR ITMS-4238 version number duplicate problem solving tutorial



3、Your Apple ID or password was entered incorrectly. 



1 package was not uploaded because they have problems:
C:\ Users \ ADMINI~1 \ AppData \ Local \ Temp \ au \ itmsp \ 1288395802.itmsp – Error message:
Your Apple ID or password was entered incorrectly. (-20101)

This problem is because the previous password has been configured to log in to other Apple Developer accounts, delete the previously configured special password, click the ok button and then pass.