Reject related to AppTrackingTransparency

Can anyone tell me how I solved this problem?

Guideline 2.1 - Information Needed

We’re looking forward to completing the review of your app, but we need more information to continue. Specifically, we noticed that your app uses the AppTrackingTransparency framework, but we haven’t been able to locate the relevant AppTrackingTransparency permission requests.

While it is not required to implement AppTrackingTransparency at this time, we check to make sure the implementation is compliant with our guidelines when we detect the framework in an app.

Next Steps

If your app integrates AppTrackingTransparency, please indicate where in your app we can find the AppTrackingTransparency permission request.

If your app does not integrate AppTrackingTransparency, please indicate this information in the Review Notes section for each version of your app in App Store Connect when submitting for review.

Resources
See the app privacy question update.
Learn more about how AppTrackingTransparency protects user’s privacy and data.

Since your App Store Connect status is Metadata Rejected, we do NOT require a new binary. To revise the metadata, visit App Store Connect to select your app and revise the desired metadata values. Once you’ve completed all changes, reply to this message in Resolution Center and we will continue the review.

Info.plist

<key>NSUserTrackingUsageDescription</key>
<string>This identifier will be used to deliver personalized ads to you.</string>
<key>io.flutter.embedded_views_preview</key>
<true/>
<key>SKAdNetworkItems</key>
<array>
  <dict>
    <key>SKAdNetworkIdentifier</key>
    <string>cstr6suwn9.skadnetwork</string>
  </dict>
</array>

Podfile

platform :ios, '9.0'

[zjamshidi]

Shouldn’t it be part of the ad library? why do we need to add another library?

[tokyokamera]

My app is accepted by Apple Store Connect now. Thank you!!