Xcode 8 build crash on iOS 9.2 and below

Question

When I build my app with Xcode 8 GM Seed and run it on an iOS 9.2 below device OR simulator, I get strange EXC_BAD_ACCESS crashes during app startup or a few seconds after the app launched. The crash always happens in a different spot (adding a subview, [UIImage imageNamed:], app delegate's main method etc). I don't get those crashes when I run it on iOS 9.3+ or 10 and I don't get them when I build with Xcode 7 and run on iOS 9.2 and below. Has anyone else experiences something similar? Is this a known issue with Xcode 8?

Answer 1

edited script to convert png files to correct format in whole project and with white spaces:

#!/bin/bash
DIRECTORY=$1
echo "------------------------------"
echo "Passed Resources with xcassets folder argument is <$DIRECTORY>"
echo "------------------------------"
echo "Processing asset:"

find "$DIRECTORY" -name '*png' -print0 | while read -d $'\0' file; 
do 
    echo "---------$file"
    sips -m "/System/Library/Colorsync/Profiles/sRGB Profile.icc" "$file" --out "$file"
done

echo "------------------------------"
echo "script successfully finished"
echo "------------------------------"

Answer 2

Although question has been already answered, accepeted solution doesn't work for me, as I didn't have any 16b/ch assets.

I found that issue appeared for assets which were compressed using lzfse algorithm (you can find information about compression extracting info from Assets.car using assetutil). Unfortunately Xcode IDE doesn't allow developers to change compression algorithm, however you can do that by compiling assets manually and lowering deployment target in actool command.

tl;dr;

1. Archive
2. Unzip ipa
3. Compile assets - You can find asset compiler command for your project generated by xcode by checking archive logs in Xcode report navigator

Example command:

xcrun actool --output-format human-readable-text --notices --warnings --minimum-deployment-target 8.0 --output-partial-info-plist info_partial.plist --app-icon AppIcon --launch-image LaunchImage --enable-on-demand-resources YES --sticker-pack-identifier-prefix {bundle_id}.sticker-pack --target-device iphone --target-device ipad --platform iphoneos --product-type com.apple.product-type.application --compile #{path_to_directory_containing_Assets_car} Assets/Assets.xcassets

4. Zip it.
5. Resign