The resource assignment and main.jsbundle must be in the same folder. Try:
./react-native bundle --minify --entry-file index.ios.js --platform ios --dev false --bundle-output ./release/main.jsbundle --assets-dest ./release
In either case, the packer will create a resource folder.
, :
-- .sh, XCode, main.jsbundle , , . , , . - main.jsbundle . , " " → " ".