Impossible de lancer MC depuis eclipse (1.13)

Bonjour, j'ai suivi les tuto de robin ( edition 2019 )
et je me retrouve avec ce message d'erreur quand je veux lancer Minecraft par eclipse pour voir si mon bloc à bien été ajouté :


2019-05-30 17:39:33,582 main WARN Disabling terminal, you're running in an unsupported environment.


[17:39:34.085] [Client thread/ERROR] [minecraft/ResourceIndex]: Can't find the resource index file: assets\indexes\1.13.json

[17:39:34.127] [Client thread/INFO] [minecraft/Minecraft]: Setting user: Player530

Exception in thread "Client thread" java.lang.ExceptionInInitializerError

at net.minecraftforge.fml.loading.moddiscovery.ModInfo.lambda$new$1(ModInfo.java:73)

at java.util.Optional.map(Optional.java:215)

at net.minecraftforge.fml.loading.moddiscovery.ModInfo.<init>(ModInfo.java:73)

at net.minecraftforge.fml.loading.DefaultModInfos.<clinit>(DefaultModInfos.java:54)

at net.minecraftforge.fml.DefaultModContainers.<clinit>(DefaultModContainers.java:26)

at net.minecraftforge.fml.ModLoadingContext.getActiveContainer(ModLoadingContext.java:44)

at net.minecraftforge.registries.GameData.checkPrefix(GameData.java:928)

at net.minecraftforge.registries.ForgeRegistryEntry.setRegistryName(ForgeRegistryEntry.java:45)

at net.minecraftforge.registries.ForgeRegistryEntry.setRegistryName(ForgeRegistryEntry.java:50)

at net.minecraftforge.registries.ForgeRegistryEntry.setRegistryName(ForgeRegistryEntry.java:32)

at net.minecraftforge.registries.NamespacedWrapper.register(NamespacedWrapper.java:56)

at net.minecraftforge.registries.NamespacedWrapper.put(NamespacedWrapper.java:66)

at net.minecraftforge.registries.NamespacedWrapper.put(NamespacedWrapper.java:36)

at net.minecraft.util.SoundEvent.register(SoundEvent.java:686)

at net.minecraft.util.SoundEvent.registerSounds(SoundEvent.java:20)

at net.minecraft.init.Bootstrap.register(Bootstrap.java:473)

at net.minecraft.client.Minecraft.<init>(Minecraft.java:374)

at net.minecraft.client.main.Main.main(Main.java:117)

at mcp.client.Start.main(Start.java:17)

Caused by: java.lang.NullPointerException: null value in entry: mcVersion=null

at com.google.common.collect.CollectPreconditions.checkEntryNotNull(CollectPreconditions.java:34)

at com.google.common.collect.ImmutableMapEntry.<init>(ImmutableMapEntry.java:49)

at com.google.common.collect.ImmutableMap.entryOf(ImmutableMap.java:172)

at com.google.common.collect.ImmutableMap.of(ImmutableMap.java:129)

at net.minecraftforge.fml.loading.StringSubstitutor.<clinit>(StringSubstitutor.java:33)


... 19 more