First of all, I would like to state that I already looked at Stack Overflow post here and adding either the one mentioned by either iCoder & Deepak didn't solve the problem for me.
I'm using React-Native to develop my apps including this React-Native-Permissions package I found. Their documentation states that I should add all the permission their package enables e.g. Location, Camera and all the others mentioned there. After I did this I was able to upload my application to the store and submit it for review.
Today I got to the office and I saw there was some feedback from Apple available. So after I completed the feedback I wanted to re-upload to the store again (increasing the build number as I'm supposed to do).
And now I keep getting the message in the title mentioned above while I have it present in my info.plist like such
<key>NSBluetoothAlwaysUsageDescription</key>
<string>Our app does not request this permission or utilize this functionality but it is included in our info.plist since our app utilizes the react-native-permissions library, which references this permission in its code.</string>
EDIT:
I hope to clarify things below in order to find an answer to the problem I'm facing. The error given in the title occurs directly after uploading to the store (So I'm guessing the actual error is picked up the automatic checks done by the system).
The answer below won't help me to fix the problem since the more descriptive string wont be checked by the automatic system check. And I've successfully used this string for other elements in the info.plist. Next to this I found evidence that people successfully submit their app to the app store using this tactic. As shown by the comment of Gradner following this link React Native Permission issue 266
Someone posted an answer that helped me, but then deleted it! To paraphrase the answer:
Adding the privacy keys to the plist without knowing what is triggering the error from Apple is not the best way to solve this.
In my case, when I did a grep search I found that there is some reference to CoreBluetooth.framework inside my project.pbxproj. I removed the reference and the build and TestFlight upload succeeded!
To search use the following command:
grep -r -a CoreBluetooth.framework ProjectFolder