I found this from Iron war: https://forums.triplea-game.org/topic/73/iron-war-official-thread/4
S
Swampy Mar 31, 2017, 10:29 AM
I have downloaded the map, but getting an error message:
triplea.engine.version.bin:1.9
games.strategy.engine.framework.startup.launcher.MapNotFoundException
at games.strategy.triplea.ResourceLoader.getMapResourceLoader(ResourceLoader.java:57)
at games.strategy.util.LocalizeHTML.localizeImgLinksInHTML(LocalizeHTML.java:87)
0
Frostion Admin Apr 1, 2017, 1:42 AM
@Swampy - I think there were some problems with the download that was caused by mismatching names and stuff. NOW the map seems to be both downloadable and working. I already did a small fix. The kamikaze planes can now land on carriers.
PS: Maybe you actually have to go to your map folder and delete the βiron War BETAβ zip and properties file you downloaded, and then redownload the map. (Probably in the directory C:\Users\YOURNAME\triplea\downloadedMaps )
The new working and updated map is called v2 in the download screen and v0.1.1 in the map selection window.
Maybe it is a naming thing. I'll go through the xml and make sure they're all spelled the same.
What exactly did you have @Frostion that was causing this ?
Oh i see it says "map" not "image" but may be relevant 
well it's not spelling. they're both the same too