[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)
[21:43:51] [Datafixer Bootstrap #0] [com.mojang.datafixers.DataFixerBuilder/INFO]: 295 Datafixer optimizations took 1144 milliseconds
[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 ----
Time: 2026-08-06 21:44:02
Description: Initializing game
java.lang.NoClassDefFoundError: org/lwjgl/vulkan/VkPhysicalDeviceProperties2
at com.mojang.blaze3d.vulkan.VulkanBackend.
at net.minecraft.client.PreferredGraphicsApi.getBackendsToTry(PreferredGraphicsApi.java:37)
at net.minecraft.client.Minecraft.
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)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
at com.mojang.blaze3d.vulkan.VulkanBackend.
at net.minecraft.client.PreferredGraphicsApi.getBackendsToTry(PreferredGraphicsApi.java:37)
at net.minecraft.client.Minecraft.
Is Modded: Probably not. Client jar signature and brand is untouched
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.