[20:06:17] [Client thread/FATAL] [minecraft/Minecraft]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_241]
	at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_241]
	at net.minecraft.util.Util.runTask(Util.java:54) [Util.class:?]
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1178) [Minecraft.class:?]
	at net.minecraft.client.Minecraft.run(Minecraft.java:442) [Minecraft.class:?]
	at net.minecraft.client.main.Main.main(Main.java:118) [Main.class:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_241]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_241]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_241]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_241]
	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:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_241]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_241]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_241]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_241]
	at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
	at GradleStart.main(GradleStart.java:25) [start/:?]
Caused by: java.lang.NullPointerException
	at net.minecraft.inventory.InventoryBasic.<init>(InventoryBasic.java:34) ~[InventoryBasic.class:?]
	at net.minecraft.client.network.NetHandlerPlayClient.handleOpenWindow(NetHandlerPlayClient.java:1194) ~[NetHandlerPlayClient.class:?]
	at net.minecraft.network.play.server.SPacketOpenWindow.processPacket(SPacketOpenWindow.java:47) ~[SPacketOpenWindow.class:?]
	at net.minecraft.network.play.server.SPacketOpenWindow.processPacket(SPacketOpenWindow.java:11) ~[SPacketOpenWindow.class:?]
	at net.minecraft.network.PacketThreadUtil$1.run(PacketThreadUtil.java:21) ~[PacketThreadUtil$1.class:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:1.8.0_241]
	at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_241]
	at net.minecraft.util.Util.runTask(Util.java:53) ~[Util.class:?]
	... 15 more