My app is white labeled by building a generic app and then resigning the app bundle with new images. Before iOS11 I could achieve this by switching in new images into the bundle and resigning. However now that asset catalogs are required for the app icons I'm having trouble creating the Assets.car file.
Here is what I have tried:
Copying Images.xcassets to a working directory (with a build directory next to it). Images.xcassets contains AppIcons.appiconset and LaunchImage.launchimage.
From the command line
xcrun actool Images.xcassets --compile build --platform iphoneos --minimum-deployment-target 9.0
It seems to run but no file is created.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>com.apple.actool.compilation-results</key>
<dict>
<key>output-files</key>
<array/>
</dict>
</dict>
</plist>
I hope I'm missing something obvious.