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[15:51:44 FATAL]: excepción no controlada en el subproceso Subproceso [pool-2-thread-4,5, main] com.google.gson.JsonSyntaxException: clave duplicada: nulo en com.google.gson.internal.bind. MapTypeAdapterFactory $ Adapter.read (MapTypeAdapterFactory.java:190) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1.0] en com.google.gson.internal.bind.MapTypeAdapterFactory $ Adapter.read (MapTypeAdapterFactory.java:5 ) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1.0] en com.google.gson.internal.bind.ReflectiveTypeAdapterFactory $ 1.read (ReflectiveTypeAdapterFactory.java:93) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe : v1.0] en com.google.gson.internal.bind.ReflectiveTypeAdapterFactory $ Adapter.read (ReflectiveTypeAdapterFactory.java:172) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1.0] en com.google.gson.Gson.fromJson (Gson.java:803) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1.0] en com.google.gson.Gson.fromJson (Gson.java:768) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1.0] en com.google.gson.Gson.fromJson (Gson.java:717) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1.0] en com.google.gson.Gson.fromJson (Gson.java:689) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1.0] en net.minecraft.launcher.updater.RemoteVersionList.getCompleteVersion (RemoteVersionList.java:40 ) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1.0] en net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion (MinecraftVersionManager.java:240) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1. 0] en net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion (MinecraftVersionManager.java:47) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1.0] en com.mojang.launcher.game.runner.AbstractGameRunner. AbstractGameRunner.java:74) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1.0] en net.minecraft.launcher.game.GameLaunchDispatcher $ 1.run (GameLaunchDispatcher.java:128) ~ [Shiginima% 20Launcher% 20SE% 20v4200.exe: v1.0] en java.base / java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1128) ~ [?:?] En java.base / java.util.concurrent.ThreadPoolExecutor $ Worker. ejecutar (ThreadPoolExecutor.java:628) ~ [?:?] en java.base / java.lang.Thread.run (Thread.java:835) [?:?] No entiendo pq pasa eso e buscado tutoriales y no hay, casi nadie le pasa e visto a un par de usuarios pero no tengo ni idea si me contestan gracias

[15:51:44 FATAL]: Unhandled exception in thread Thread[pool-2-thread-4,5,main] com.google.gson.JsonSyntaxException: duplicate key: null at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:190) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:145) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at com.google.gson.Gson.fromJson(Gson.java:803) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at com.google.gson.Gson.fromJson(Gson.java:768) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at com.google.gson.Gson.fromJson(Gson.java:717) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at com.google.gson.Gson.fromJson(Gson.java:689) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at net.minecraft.launcher.updater.RemoteVersionList.getCompleteVersion(RemoteVersionList.java:40) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion(MinecraftVersionManager.java:240) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion(MinecraftVersionManager.java:47) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at com.mojang.launcher.game.runner.AbstractGameRunner.playGame(AbstractGameRunner.java:74) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at net.minecraft.launcher.game.GameLaunchDispatcher$1.run(GameLaunchDispatcher.java:128) ~[Shiginima%20Launcher%20SE%20v4200.exe:v1.0] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[?:?] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[?:?] at java.base/java.lang.Thread.run(Thread.java:835) [?:?] No entiendo pq pasa eso e buscado tutoriales y no hay, casi nadie le pasa e visto a un par de user pero no tengo ni idea si me contestan gracias