app_screenshot_iterator.rb in fastlane-2.157.1

- old
+ new

@@ -79,10 +79,10 @@
         localization = supported_localizations.find { |l| l.locale == language }
         screenshots_per_display_type = screenshots_for_language.reject { |screenshot| screenshot.device_type.nil? }.group_by(&:device_type)
 
         screenshots_per_display_type.each do |display_type, screenshots|
           # create AppScreenshotSet for given display_type if it doesn't exsit
-          app_screenshot_set = app_screenshot_set_per_locale_and_display_type[language][display_type]
+          app_screenshot_set = (app_screenshot_set_per_locale_and_display_type[language] || {})[display_type]
           app_screenshot_set ||= localization.create_app_screenshot_set(attributes: { screenshotDisplayType: display_type })
 
           # iterate over screenshots per display size with index
           screenshots.each.with_index do |screenshot, index|
             yield(localization, app_screenshot_set, screenshot, index)