java.lang.RuntimeException

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  • java.lang.RuntimeException: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues. at net.minecraft.server.v1_8_R1.WorldNBTStorage.h(WorldNBTStorage.java:57) at net.minecraft.server.v1_8_R1.WorldNBTStorage.<init>(WorldNBTStorage.java:41) at net.minecraft.server.v1_8_R1.ServerNBTManager.<init>(SourceFile:19) at net.minecraft.server.v1_8_R1.MinecraftServer.a(MinecraftServer.java:249) at net.minecraft.server.v1_8_R1.DedicatedServer.init(DedicatedServer.java:211) at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:494) at java.lang.Thread.run(Thread.java:745)
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