We tried to submit a new build to iTunesConnect for updating an existing application. It is a quick patch for fixing one server url.
We changed two files: REST.plis
To resolve this issue, note that the values for both of these fields must be unique in your Info.plist file:
CFBundleDisplayName)
CFBundleName)
PRODUCT_NAME, used internally, e.g. in filename like MyApp.appThat is, your CFBundleDisplayName can be as unique as you want, but if your CFBundleName isn't, your upload will continue to fail.