Show FML Missing Mods Screen

[Draco18s 2417]

Is there a way to show the "You don't have mod X of version Y" screen when loading mods, such that state detection not related to things Forge can see (cough, a mod not reporting a version number) and display a message to the user about the missing requirement?

 

I'd much prefer to do that than throw an IllegalStateException and crash the game.

[LexManos 1620]

There are ways to throw custom errors with custom GUIs.

However, why is the mod not reporting a version number?

[Draco18s 2417]

There are ways to throw custom errors with custom GUIs.

However, why is the mod not reporting a version number?

 

Its not mine, of course, but for some reason their @Mod annotation is missing the version number.  The file name contains it, but not the @mod or the mcmod.info file, so Fore assumes the version is 1.0 and given that some changes were made that my mod depends on, I can't directly say "I need Mod X version Y" in my dependencies, because Forge can't tell 1.0 ("1.2.15") apart from 1.0 ("1.2.18").

 

Because of this, I'm using Reflection to see if the classes I need exist, but I'm not sure how to prevent the game from successfully loading (because as soon as WorldGen happens, it'll crash).

[diesieben07 7706]

CustomModLoadingErrorDisplayException