[21:43:48] [main] [com.mojang.blaze3d.platform.NativeLibrariesBootstrap/WARN]: Failed to load Vulkan loader
java.lang.NoClassDefFoundError: org/lwjgl/vulkan/VK
	at com.mojang.blaze3d.platform.NativeLibrariesBootstrap.tryLoadingVulkan(NativeLibrariesBootstrap.java:310)
	at com.mojang.blaze3d.platform.NativeLibrariesBootstrap.loadLibraries(NativeLibrariesBootstrap.java:85)
	at net.minecraft.client.main.Main.main(Main.java:142)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at com.modrinth.theseus.MinecraftLaunch.relaunch(MinecraftLaunch.java:61)
	at com.modrinth.theseus.MinecraftLaunch.main(MinecraftLaunch.java:28)
Caused by: java.lang.ClassNotFoundException: org.lwjgl.vulkan.VK
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
	at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
	... 7 more
[21:43:51] [Datafixer Bootstrap #0] [com.mojang.datafixers.DataFixerBuilder/INFO]: 295 Datafixer optimizations took 1144 milliseconds
[21:44:01] [Render thread] [com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService/INFO]: Environment: Environment[sessionHost=https://sessionserver.mojang.com, servicesHost=https://api.minecraftservices.com, profilesHost=https://api.mojang.com, name=PROD]
[21:44:02] [Render thread] [net.minecraft.client.Minecraft/INFO]: Setting user: {MINECRAFT_USERNAME}
[21:44:02] [Render thread] [net.minecraft.client.Minecraft/INFO]: Backend library: LWJGL version 3.4.1+2
[21:44:02] [Render thread] [net.minecraft.client.Minecraft/WARN]: Detected unexpected shutdown during last game startup: resetting fullscreen mode
[21:44:02] [Render thread] [net.minecraft.client.Minecraft/WARN]: Detected unexpected shutdown during last game startup: forcing preferred graphics API to OpenGL
---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!
Time: 2026-08-06 21:44:02
Description: Initializing game
java.lang.NoClassDefFoundError: org/lwjgl/vulkan/VkPhysicalDeviceProperties2
	at com.mojang.blaze3d.vulkan.VulkanBackend.
(VulkanBackend.java:73)
	at net.minecraft.client.PreferredGraphicsApi.getBackendsToTry(PreferredGraphicsApi.java:37)
	at net.minecraft.client.Minecraft.
(Minecraft.java:508)
	at net.minecraft.client.main.Main.main(Main.java:278)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at com.modrinth.theseus.MinecraftLaunch.relaunch(MinecraftLaunch.java:61)
	at com.modrinth.theseus.MinecraftLaunch.main(MinecraftLaunch.java:28)
Caused by: java.lang.ClassNotFoundException: org.lwjgl.vulkan.VkPhysicalDeviceProperties2
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
	at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
	... 8 more
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Render thread
Stacktrace:
	at com.mojang.blaze3d.vulkan.VulkanBackend.
(VulkanBackend.java:73)
	at net.minecraft.client.PreferredGraphicsApi.getBackendsToTry(PreferredGraphicsApi.java:37)
	at net.minecraft.client.Minecraft.
Surface Info:
GFLW Platform: win32
	Graphics Device:
GL debug messages:
Is Modded: Probably not. Client jar signature and brand is untouched
	Universe: 404
	Type: Client
	Locale: en_US
	System encoding: Cp1252
	File encoding: UTF-8
	CPU: 8x Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz
#@!@# Game crashed! Crash report saved to: #@!@# C:\Users\********\AppData\Roaming\ModrinthApp\profiles\Vanilla 26.2\crash-reports\crash-2026-08-06_21.44.02-client.txt
WARNING: Unknown module: jdk.internal specified to --add-opens
[MODRINTH] Unable to call JDK findMainMethod. Falling back to pre-Java 25 main method finding.