Got this crash after forcing MC to shut down - I tried to load a world that worked yesterday.
Latest forge for 1.10.2
reverted to prev version - no problem

The log file is here https://dl.dropboxusercontent.com/u/58751759/fml-client-2.log

[17:08:44] [Server thread/ERROR] [FML/]: The following problems were captured during this phase
[17:08:44] [Server thread/ERROR] [FML/]: Caught exception from MattDahEpic Core (mdecore)
java.lang.AbstractMethodError
at com.mattdahepic.mdecore.command.AbstractCommand.registerCommandLogic(AbstractCommand.java:26) ~[mdecore-1.10.2-1.4.jar:?]
at com.mattdahepic.mdecore.command.CommandMDE.(CommandMDE.java:10) ~[mdecore-1.10.2-1.4.jar:?]
at com.mattdahepic.mdecore.command.CommandMDE.(CommandMDE.java:6) ~[mdecore-1.10.2-1.4.jar:?]
at com.mattdahepic.mdecore.MDECore.serverStarting(MDECore.java:83) ~[mdecore-1.10.2-1.4.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_25]
at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:600) ~[forge-1.10.2-12.18.2.2151.jar:?]
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_25]
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 net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:243) ~[forge-1.10.2-12.18.2.2151.jar:?]
at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:221) ~[forge-1.10.2-12.18.2.2151.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_25]
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 net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:145) [LoadController.class:?]
at net.minecraftforge.fml.common.Loader.serverStarting(Loader.java:845) [Loader.class:?]
at net.minecraftforge.fml.common.FMLCommonHandler.handleServerStarting(FMLCommonHandler.java:292) [FMLCommonHandler.class:?]
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:122) [bzl.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
[17:08:44] [Server thread/ERROR] [FML/]: A fatal exception occurred during the server starting event
net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from MattDahEpic Core (mdecore)

Caused by: java.lang.AbstractMethodError
at com.mattdahepic.mdecore.command.AbstractCommand.registerCommandLogic(AbstractCommand.java:26) ~[mdecore-1.10.2-1.4.jar:?]
at com.mattdahepic.mdecore.command.CommandMDE.(CommandMDE.java:10) ~[mdecore-1.10.2-1.4.jar:?]
at com.mattdahepic.mdecore.command.CommandMDE.(CommandMDE.java:6) ~[mdecore-1.10.2-1.4.jar:?]
at com.mattdahepic.mdecore.MDECore.serverStarting(MDECore.java:83) ~[mdecore-1.10.2-1.4.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_25]
at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:600) ~[forge-1.10.2-12.18.2.2151.jar:?]
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_25]
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 net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:243) ~[LoadController.class:?]
at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:221) ~[LoadController.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_25]
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 net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:145) ~[LoadController.class:?]
at net.minecraftforge.fml.common.Loader.serverStarting(Loader.java:845) [Loader.class:?]
at net.minecraftforge.fml.common.FMLCommonHandler.handleServerStarting(FMLCommonHandler.java:292) [FMLCommonHandler.class:?]
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:122) [bzl.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]

Duplicate of MattDahEpic/MDECore#17. Caused by MDECore, not AODC.