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TestFlight Troubleshooting

Running into issues with TestFlight? Here are solutions to the most common problems.

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Upload Issues

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”Invalid Binary” Error

Symptoms: Upload succeeds but email says “Invalid Binary” Common causes and fixes:

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Upload Gets Stuck

Symptoms: Progress bar doesn’t move for extended time Fixes:
  1. Wait at least 30 minutes (large apps take time)
  2. Check internet connection
  3. Cancel and retry
  4. Try during off-peak hours
  5. Restart Nativeline and try again

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”Unable to Upload”

Symptoms: Upload fails immediately Check:
  • Signed into App Store Connect in Nativeline
  • Developer Program is active (not expired)
  • Internet connection is stable
  • App exists in App Store Connect with matching Bundle ID

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Processing Issues

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Stuck on “Processing”

Symptoms: Build shows “Processing” for hours Normal: Processing can take 30 minutes to 2 hours If longer:
  1. Check Apple System Status
  2. Wait up to 24 hours (rare cases)
  3. Upload a new build with incremented number

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”Missing Compliance”

Symptoms: Build processed but shows “Missing Compliance” Fix:
  1. In App Store Connect, click on the build
  2. Answer the export compliance question
  3. Typically: Yes, uses HTTPS only → Select exempt
Permanent fix: Ask Nativeline:
This adds the key to Info.plist so you don’t have to answer each time.

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”Build Invalid”

Symptoms: Email says build is invalid with specific error Common errors:

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Tester Issues

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”Unable to Accept Invitation”

Symptoms: Tester can’t accept the TestFlight invitation Fixes:
  1. Ensure tester has TestFlight app installed
  2. Tester should update iOS to latest version
  3. Have them check spam folder for invitation
  4. Resend the invitation
  5. Try adding them to a different group

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”App Not Installing”

Symptoms: Tester accepts but app won’t install Fixes:
  1. Check if device meets minimum iOS version
  2. Ensure enough storage space on device
  3. Have tester restart TestFlight app
  4. Remove and re-add tester

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”Cannot See New Build”

Symptoms: You uploaded a new build but testers don’t see it Check:
  1. Build finished processing (not still in “Processing”)
  2. Build is added to tester’s group
  3. Automatic distribution is enabled for the group
  4. Tester should manually refresh TestFlight app

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Invitation Emails Not Arriving

Symptoms: Testers never receive invitation Fixes:
  1. Check spam/junk folders
  2. Verify email address is correct
  3. Try a different email address
  4. Apple’s email can be slow — wait 30 minutes
  5. Use public link instead

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External Review Issues

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Review Taking Too Long

Symptoms: External review takes more than 48 hours Normal: First reviews can take 24-48 hours, sometimes longer Options:
  1. Wait — most clear within 72 hours
  2. Check for emails from Apple requesting info
  3. Contact Apple Developer Support if urgent

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Review Rejected

Symptoms: External review was rejected Common reasons:
  • App crashes on launch
  • Missing required functionality
  • Privacy policy issues
  • Placeholder content
Fix:
  1. Read the rejection reason carefully
  2. Fix the issues
  3. Upload new build with incremented number
  4. Submit for review again

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App Crashes for Testers

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Gathering Information

When testers report crashes:
  1. Check TestFlight Crashes
    • App Store Connect → TestFlight → Crashes
    • View crash logs and frequency
  2. Ask Testers for Details
    • What were they doing?
    • What device/iOS version?
    • Does it happen every time?
  3. Review Console Logs (Pro feature)
    • Open Code Editor in Nativeline
    • Check Logs tab for error messages

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Common Crash Causes

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Build Expiration

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Builds About to Expire

Symptoms: 90-day limit approaching Fix: Upload a new build before expiration. Testers will be notified to update.

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Build Already Expired

Symptoms: Testers can’t use the app anymore Fix: Upload a new build immediately. Testers need to update through TestFlight.

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Certificate Issues

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”No Valid Signing Certificate”

Symptoms: Can’t create a distribution build Fixes:
  1. Go to Settings → Signing
  2. Click “Reset Certificates”
  3. Let Nativeline create new ones
  4. Try uploading again

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”Provisioning Profile Expired”

Symptoms: Build fails due to profile issues Fixes:
  1. Reset signing in Nativeline Settings
  2. Ensure Developer Program is active (not expired)
  3. Regenerate profiles in Apple Developer portal if using manual signing

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Quick Fixes Checklist

When things aren’t working:
  • Developer Program is active and not expired
  • Signed into correct Apple ID in Nativeline
  • Bundle ID matches between Nativeline and App Store Connect
  • Build number is higher than all previous builds
  • App icon is present (1024x1024 PNG)
  • Internet connection is stable
  • Apple’s systems are operational (check system status)

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Getting More Help

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Check Apple’s System Status

developer.apple.com/system-status Outages affect:
  • App Store Connect
  • TestFlight
  • Certificate services

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Contact Apple Developer Support

  1. Go to developer.apple.com/contact
  2. Select “App Store Connect & TestFlight”
  3. Describe your issue
  4. Attach screenshots if relevant

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Next Steps

App Store Overview

Ready for public launch

Certificates & Profiles

Fix signing issues