Hi seyfx001, There is a known issue in windows signing which we are working on and would fix soon. You can package the app using mac and upload it. It's explained with full steps in readme. [iOS ] "This build is invalid" error in iTunesConnect while uploading app This issue has been fixed on Mac. To package the app correctly, so that it gets uploaded to iTunesConnect without any errors, the developer needs to perform following Add certificate in the Keychain Access of the Mac and provide necessary permission to it while adt accesses the certificate. If doing a remote login (ssh) for packaging the app, an extra command is required. Security unlock <home>/Library/Keychains/login.keychain for successful packaging. Reference: http://fpdownload.macromedia.com/pub/labs/flashruntimes/shared/air20_flashplayer20_releasenotes.pdf Thanks. Regards, Nipun
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