App submission failed - 1+ corrupted binaries/non-public API usage and no additional details

Question

I’ve been submitting my app to the App Store for test flight and after build 11, I’ve been getting failures via email from Apple:

Non-public API usage: The app conta

Answer 1

Had the same problem since Saturday. Took long trial and error in our case, turning on Bitcode didn't work. The following part of my podfile was the reason:

post_install do |installer| 
  puts("Set deployment target")
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '10.3'
    end
  end
end

After I removed this one it processed without an error (still with Bitcode turned off). It really puzzles me though why setting the deployment target suddenly causes a rejection.