Undocument exception throwModCompatibilityError

[LemADEC]

When ttCore is present alongside with EnderCore, a cryptic throwModCompatibilityError exception is reported with no message associated. There's no documentation of this constrains in the modinfo nor on the Curse project page.

[03:53:30] [Client thread/ERROR] [FML/]: The following problems were captured during this phase
[03:53:30] [Client thread/ERROR] [FML/]: Caught exception from endercore
com.enderio.core.client.EnderCoreModConflictException: 

    at com.enderio.core.client.ClientProxy.throwModCompatibilityError(ClientProxy.java:24) ~[ClientProxy.class:?]
    at com.enderio.core.EnderCore.preInit(EnderCore.java:67) ~[EnderCore.class:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_79]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_79]
    at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:532) ~[modpack.jar:?]
    at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) ~[?:?]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_79]
    at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
    at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:212) ~[modpack.jar:?]
    at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:190) ~[modpack.jar:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_79]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_79]
    at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
    at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119) [LoadController.class:?]
    at cpw.mods.fml.common.Loader.preinitializeMods(Loader.java:556) [Loader.class:?]
    at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:243) [FMLClientHandler.class:?]
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:480) [bao.class:?]
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:878) [bao.class:?]
    at net.minecraft.client.main.Main.main(SourceFile:148) [Main.class:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_79]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_79]
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
[03:53:30] [Client thread/ERROR] [FML/]: A custom exception was thrown by a mod, the game will now halt
com.enderio.core.client.EnderCoreModConflictException: 

    at com.enderio.core.client.ClientProxy.throwModCompatibilityError(ClientProxy.java:24) ~[ClientProxy.class:?]
    at com.enderio.core.EnderCore.preInit(EnderCore.java:67) ~[EnderCore.class:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_79]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_79]
    at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:532) ~[modpack.jar:?]
    at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) ~[?:?]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_79]
    at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
    at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:212) ~[LoadController.class:?]
    at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:190) ~[LoadController.class:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_79]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_79]
    at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
    at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
    at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119) ~[LoadController.class:?]
    at cpw.mods.fml.common.Loader.preinitializeMods(Loader.java:556) ~[Loader.class:?]
    at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:243) [FMLClientHandler.class:?]
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:480) [bao.class:?]
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:878) [bao.class:?]
    at net.minecraft.client.main.Main.main(SourceFile:148) [Main.class:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_79]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_79]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_79]
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
[03:53:30] [Client thread/DEBUG] [FML/]: Bar Finished: Loading Resource - TextureManager took 0,003s
[03:53:30] [Client thread/DEBUG] [IC2.Audio/]: IC2 audio starting.

[tterrag1098]

When this error is thrown a very clear screen with text will appear on your minecraft instance, telling you what it means.

[LemADEC]

Nope, it just crash back to the launcher with nothing on logs side to help me. I had to check the source on github to decrypt what was going on.

[tterrag1098]

Are you running on a server? It won't work there but I'd expect people to test on a client first.

[LemADEC]

I was updating my modpack in SSP.

[LemADEC]

The error is shown for a split second before another mod crashes due to current game state. Mapwritter (as par of Opis) does that in my case. I would advise to add a log of the error messages in the console.

[tterrag1098]

Seems like a bug in Mapwriter, which should be reported to them.

[LemADEC]

There will always be another bug crashing preventing players to see the message screen.

[tterrag1098]

No, there won't be. I've tested this myself in a large pack and been able to see it.

[LemADEC]

As they said, "Better safe than sorry"

[tterrag1098]

This is also a problem with FML (@cpw) because it does not print the detailMessage that was given to the exception.