iOS upload to Appstore error: missing NSPhotoLibraryUsageDescription

[ekkescorner]

Qt 5.7
XCode 8

suddenly running into errors after uploading app to appstore for testflight:

This app attempts to access privacy-sensitive data without usage description. The app's Info.plist must contain an NSPhotoLibraryUsageDescription key .....

Googled and found that many iOS devs are running into the same issue.
But: I'm doing nothing with Photos
I'm storing and reading JSON in QStandardPaths::standardLocations(QStandardPaths::AppDataLocation)
I'm not using PictureLocation

any ideas what's wrong ?

added this to Info.plist:

        <key>NSPhotoLibraryUsageDescription</key>
        <string>$(PRODUCT_NAME) uses photos</string>

Now I can upload to itunes connect, but I never access Photos.

[SGaist]

Hi,

Any chance of this starting after an iOS 10 update ?

[ekkescorner]

my iPhone is still 9.3.5

as I found from Google searches that other devs also run into this, because Apple now (since 10.0 is out) seems to check it different as before.
but happens for devs using Photo Library

and I'm definitely doing nothing with photos
only idea is that there's something special with Qt's AppDataLocation

[SGaist]

IIRC, QStandardPaths can return the path to the photo library and it might also be handled by QFileDialog so that could explain the requirement.

One thing to take into account: the text provided with NSPhotoLibraryUsageDescription and friends will be shown to the user when requesting matching permissions. So depending on your app target, you'll have to provide translations for these texts.

It might not be the case for your current app but for another one in the future.

[ekkescorner]

@SGaist thx for your translation hint.

The curios thing is that the only QStandardPath I'm using is

GenericDataLocation	Android: "<USER>"	iOS:"<APPROOT>/Documents"

where I'm caching JSON files. The App is never asking for Photo Library Permission -
it's only while uploading to the store where (beginning with Xcode8 / iOS10) iTunesConnect requires this entry

perhaps Xcode8 cannot recognize which QStandardPathes are used, so adding this permission
using Xcode 7.3 all works without

[SGaist]

Pure supposition but there's likely a scan somewhere that checks for that kind of constants in user code/library without checking that it is indeed used but it triggers Apple warning system anyway.

A bit more of information about NSPhotoLibraryUsageDescription here.

[ekkescorner]

@SGaist aaah - so they changed something with 10.0