Game crash on start, reason given is iris was compiled by a more recent version of java runtime, other java versions don't work.

[GJHighlander]

As title says, Iris is crashing game on start with Photonic added. Crash log claims that Iris was compiled by version 65.0 of java runtime and this version only supports versions up to 61.0. different java versions don't fix it. Removing Photonic but leaving Iris does fix it. I am using Photonic 0.2.5, game version 1.20.4, fabric loader version 0.16.9. Crash log below:

Prism Launcher version: 9.0 (official)

Launched instance in online mode

login.microsoftonline.com resolves to: [2603:1026:3000:150::8, 2603:1027:1:158::8, 2603:1027:1:158::a, 2603:1027:1:158::2, 2603:1026:3000:148::7, 2603:1027:1:158::c, 2603:1026:3000:148::12, 2603:1026:3000:150::a, 20.190.160.22, 20.190.160.20, 40.126.32.136, 40.126.32.72, 40.126.32.138, 20.190.160.17, 40.126.32.74, 40.126.32.134]

session.minecraft.net resolves to: [2620:1ec:bdf::64, 13.107.246.64]

textures.minecraft.net resolves to: [2620:1ec:bdf::64, 13.107.246.64]

api.mojang.com resolves to: [2620:1ec:bdf::64, 13.107.246.64]

Minecraft folder is: C:/Users/caspa/AppData/Roaming/PrismLauncher/instances/1.20.4/minecraft

Java path is: C:/Users/caspa/AppData/Roaming/PrismLauncher/java/eclipse_temurin_jre17.0.1+12/bin/javaw.exe

Checking Java version... Java is version 17.0.1, using 64 (amd64) architecture, from Eclipse Adoptium.

Main Class: net.fabricmc.loader.impl.launch.knot.KnotClient

Native path: C:/Users/caspa/AppData/Roaming/PrismLauncher/instances/1.20.4/natives

Traits: traits XR:Initial traits feature:is_quick_play_singleplayer traits FirstThreadOnMacOS traits feature:is_quick_play_multiplayer

Libraries: C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-freetype-natives-windows-arm64/3.3.2/lwjgl-freetype-natives-windows-arm64-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-freetype-natives-windows-x86/3.3.2/lwjgl-freetype-natives-windows-x86-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-freetype-natives-windows/3.3.2/lwjgl-freetype-natives-windows-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-freetype/3.3.2/lwjgl-freetype-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-glfw-natives-windows-arm64/3.3.2/lwjgl-glfw-natives-windows-arm64-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-glfw-natives-windows-x86/3.3.2/lwjgl-glfw-natives-windows-x86-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-glfw-natives-windows/3.3.2/lwjgl-glfw-natives-windows-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-glfw/3.3.2/lwjgl-glfw-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-jemalloc-natives-windows-arm64/3.3.2/lwjgl-jemalloc-natives-windows-arm64-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-jemalloc-natives-windows-x86/3.3.2/lwjgl-jemalloc-natives-windows-x86-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-jemalloc-natives-windows/3.3.2/lwjgl-jemalloc-natives-windows-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-jemalloc/3.3.2/lwjgl-jemalloc-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-natives-windows-arm64/3.3.2/lwjgl-natives-windows-arm64-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-natives-windows-x86/3.3.2/lwjgl-natives-windows-x86-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-natives-windows/3.3.2/lwjgl-natives-windows-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-openal-natives-windows-arm64/3.3.2/lwjgl-openal-natives-windows-arm64-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-openal-natives-windows-x86/3.3.2/lwjgl-openal-natives-windows-x86-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-openal-natives-windows/3.3.2/lwjgl-openal-natives-windows-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-openal/3.3.2/lwjgl-openal-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-opengl-natives-windows-arm64/3.3.2/lwjgl-opengl-natives-windows-arm64-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-opengl-natives-windows-x86/3.3.2/lwjgl-opengl-natives-windows-x86-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-opengl-natives-windows/3.3.2/lwjgl-opengl-natives-windows-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-opengl/3.3.2/lwjgl-opengl-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-stb-natives-windows-arm64/3.3.2/lwjgl-stb-natives-windows-arm64-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-stb-natives-windows-x86/3.3.2/lwjgl-stb-natives-windows-x86-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-stb-natives-windows/3.3.2/lwjgl-stb-natives-windows-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-stb/3.3.2/lwjgl-stb-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-tinyfd-natives-windows-arm64/3.3.2/lwjgl-tinyfd-natives-windows-arm64-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-tinyfd-natives-windows-x86/3.3.2/lwjgl-tinyfd-natives-windows-x86-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-tinyfd-natives-windows/3.3.2/lwjgl-tinyfd-natives-windows-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl-tinyfd/3.3.2/lwjgl-tinyfd-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/lwjgl/lwjgl/3.3.2/lwjgl-3.3.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/github/oshi/oshi-core/6.4.5/oshi-core-6.4.5.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/google/code/gson/gson/2.10.1/gson-2.10.1.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/google/guava/failureaccess/1.0.1/failureaccess-1.0.1.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/google/guava/guava/32.1.2-jre/guava-32.1.2-jre.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/ibm/icu/icu4j/73.2/icu4j-73.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/mojang/authlib/6.0.52/authlib-6.0.52.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/mojang/blocklist/1.0.10/blocklist-1.0.10.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/mojang/brigadier/1.2.9/brigadier-1.2.9.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/mojang/datafixerupper/6.0.8/datafixerupper-6.0.8.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/mojang/logging/1.1.1/logging-1.1.1.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/mojang/patchy/2.2.10/patchy-2.2.10.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/mojang/text2speech/1.17.9/text2speech-1.17.9.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/commons-codec/commons-codec/1.16.0/commons-codec-1.16.0.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/commons-io/commons-io/2.13.0/commons-io-2.13.0.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/commons-logging/commons-logging/1.2/commons-logging-1.2.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/io/netty/netty-buffer/4.1.97.Final/netty-buffer-4.1.97.Final.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/io/netty/netty-codec/4.1.97.Final/netty-codec-4.1.97.Final.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/io/netty/netty-common/4.1.97.Final/netty-common-4.1.97.Final.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/io/netty/netty-handler/4.1.97.Final/netty-handler-4.1.97.Final.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/io/netty/netty-resolver/4.1.97.Final/netty-resolver-4.1.97.Final.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/io/netty/netty-transport-classes-epoll/4.1.97.Final/netty-transport-classes-epoll-4.1.97.Final.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/io/netty/netty-transport-native-unix-common/4.1.97.Final/netty-transport-native-unix-common-4.1.97.Final.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/io/netty/netty-transport/4.1.97.Final/netty-transport-4.1.97.Final.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/it/unimi/dsi/fastutil/8.5.12/fastutil-8.5.12.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/net/java/dev/jna/jna-platform/5.13.0/jna-platform-5.13.0.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/net/java/dev/jna/jna/5.13.0/jna-5.13.0.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/net/sf/jopt-simple/jopt-simple/5.0.4/jopt-simple-5.0.4.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/apache/commons/commons-compress/1.22/commons-compress-1.22.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/apache/commons/commons-lang3/3.13.0/commons-lang3-3.13.0.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/apache/httpcomponents/httpcore/4.4.16/httpcore-4.4.16.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/apache/logging/log4j/log4j-api/2.19.0/log4j-api-2.19.0.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/apache/logging/log4j/log4j-core/2.19.0/log4j-core-2.19.0.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/apache/logging/log4j/log4j-slf4j2-impl/2.19.0/log4j-slf4j2-impl-2.19.0.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/joml/joml/1.10.5/joml-1.10.5.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/slf4j/slf4j-api/2.0.7/slf4j-api-2.0.7.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/net/fabricmc/intermediary/1.20.4/intermediary-1.20.4.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/ow2/asm/asm/9.7.1/asm-9.7.1.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/ow2/asm/asm-analysis/9.7.1/asm-analysis-9.7.1.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/ow2/asm/asm-commons/9.7.1/asm-commons-9.7.1.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/ow2/asm/asm-tree/9.7.1/asm-tree-9.7.1.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/org/ow2/asm/asm-util/9.7.1/asm-util-9.7.1.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/net/fabricmc/sponge-mixin/0.15.4+mixin.0.8.7/sponge-mixin-0.15.4+mixin.0.8.7.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/net/fabricmc/fabric-loader/0.16.9/fabric-loader-0.16.9.jar C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/com/mojang/minecraft/1.20.4/minecraft-1.20.4-client.jar

Native libraries:

Mods: [✔] fabric-api-0.97.2+1.20.4 [✔] iris-1.7.2+mc1.20.4 [✔] modmenu-9.2.0 [✔] Photonic-0.2.5 [✔] placeholder-api-2.4.0-pre.1+1.20.4 [✔] sodium-fabric-0.5.8+mc1.20.4

Params: --username --version 1.20.4 --gameDir C:/Users/caspa/AppData/Roaming/PrismLauncher/instances/1.20.4/minecraft --assetsDir C:/Users/caspa/AppData/Roaming/PrismLauncher/assets --assetIndex 12 --uuid --accessToken --userType --versionType release

Window size: 854 x 480

Launcher: standard

Java Arguments: [-XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump, -Xms512m, -Xmx8192m, -Duser.language=en]

Minecraft process ID: 10320

[20:06:24] [main/INFO]: Loading Minecraft 1.20.4 with Fabric Loader 0.16.9 [20:06:24] [main/INFO]: Loading 63 mods:

• fabric-api 0.97.2+1.20.4 |-- fabric-api-base 0.4.37+78d798af4f |-- fabric-api-lookup-api-v1 1.6.50+82b1bb3e4f |-- fabric-biome-api-v1 13.0.17+78d798af4f |-- fabric-block-api-v1 1.0.17+3e2216cb4f |-- fabric-block-view-api-v2 1.0.5+78d798af4f |-- fabric-blockrenderlayer-v1 1.1.47+78d798af4f |-- fabric-client-tags-api-v1 1.1.8+78d798af4f |-- fabric-command-api-v1 1.2.42+f71b366f4f |-- fabric-command-api-v2 2.2.21+78d798af4f |-- fabric-commands-v0 0.2.59+df3654b34f |-- fabric-containers-v0 0.1.88+df3654b34f |-- fabric-content-registries-v0 5.0.16+78d798af4f |-- fabric-convention-tags-v1 1.5.11+78d798af4f |-- fabric-crash-report-info-v1 0.2.24+78d798af4f |-- fabric-data-attachment-api-v1 1.1.5+b90db5744f |-- fabric-data-generation-api-v1 13.2.6+5c0133444f |-- fabric-dimensions-v1 2.1.63+6605d1a84f |-- fabric-entity-events-v1 1.6.2+09fc25014f |-- fabric-events-interaction-v0 0.7.2+389931eb4f |-- fabric-events-lifecycle-v0 0.2.75+df3654b34f |-- fabric-game-rule-api-v1 1.0.47+78d798af4f |-- fabric-item-api-v1 2.3.0+bcdd12964f |-- fabric-item-group-api-v1 4.0.27+ee30b13a4f |-- fabric-key-binding-api-v1 1.0.42+78d798af4f |-- fabric-keybindings-v0 0.2.40+df3654b34f |-- fabric-lifecycle-events-v1 2.3.1+a67ffb5d4f |-- fabric-loot-api-v2 2.1.10+78d798af4f |-- fabric-message-api-v1 6.0.6+78d798af4f |-- fabric-mining-level-api-v1 2.1.66+78d798af4f |-- fabric-model-loading-api-v1 1.0.9+78d798af4f |-- fabric-models-v0 0.4.8+9386d8a74f |-- fabric-networking-api-v1 3.1.9+6abb6a4b4f |-- fabric-object-builder-api-v1 13.1.0+dba1195c4f |-- fabric-particles-v1 1.1.8+78d798af4f |-- fabric-recipe-api-v1 2.0.22+78d798af4f |-- fabric-registry-sync-v0 4.0.21+ee30b13a4f |-- fabric-renderer-api-v1 3.2.5+78d798af4f |-- fabric-renderer-indigo 1.5.6+d331d3144f |-- fabric-renderer-registries-v1 3.2.54+df3654b34f |-- fabric-rendering-data-attachment-v1 0.3.43+73761d2e4f |-- fabric-rendering-fluids-v1 3.1.2+e761c6694f |-- fabric-rendering-v0 1.1.57+df3654b34f |-- fabric-rendering-v1 3.2.1+6fd945a04f |-- fabric-resource-conditions-api-v1 2.3.15+78d798af4f |-- fabric-resource-loader-v0 0.11.21+ee30b13a4f |-- fabric-screen-api-v1 2.0.18+78d798af4f |-- fabric-screen-handler-api-v1 1.3.57+78d798af4f |-- fabric-sound-api-v1 1.0.18+78d798af4f |-- fabric-transfer-api-v1 4.0.12+90f2d7b14f -- fabric-transitive-access-wideners-v1 5.0.15+78d798af4f
• fabricloader 0.16.9 -- mixinextras 0.4.1
• iris 1.7.2+mc1.20.4 |-- io_github_douira_glsl-transformer 2.0.1 |-- org_anarres_jcpp 1.4.14 -- org_antlr_antlr4-runtime 4.13.1
• java 17
• minecraft 1.20.4
• modmenu 9.2.0
• photonics 0.2.5
• placeholder-api 2.4.0-pre.1+1.20.4
• sodium 0.5.8+mc1.20.4 [20:06:24] [main/INFO]: SpongePowered MIXIN Subsystem Version=0.8.7 Source=file:/C:/Users/caspa/AppData/Roaming/PrismLauncher/libraries/net/fabricmc/sponge-mixin/0.15.4+mixin.0.8.7/sponge-mixin-0.15.4+mixin.0.8.7.jar Service=Knot/Fabric Env=CLIENT [20:06:24] [main/INFO]: Compatibility level set to JAVA_17 [20:06:24] [main/INFO]: Loaded configuration file for Sodium: 42 options available, 3 override(s) found [20:06:25] [main/WARN]: Force-disabling mixin 'features.render.entity.CuboidMixin' as rule 'mixin.features.render.entity' (added by mods [iris]) disables it and children [20:06:25] [main/WARN]: Force-disabling mixin 'features.render.entity.ModelPartMixin' as rule 'mixin.features.render.entity' (added by mods [iris]) disables it and children [20:06:25] [main/WARN]: Force-disabling mixin 'features.render.entity.cull.EntityRendererMixin' as rule 'mixin.features.render.entity' (added by mods [iris]) disables it and children [20:06:25] [main/WARN]: Force-disabling mixin 'features.render.entity.shadows.EntityRenderDispatcherMixin' as rule 'mixin.features.render.entity' (added by mods [iris]) disables it and children [20:06:25] [main/WARN]: Force-disabling mixin 'features.render.gui.font.GlyphRendererMixin' as rule 'mixin.features.render.gui.font' (added by mods [iris]) disables it and children [20:06:25] [main/WARN]: Force-disabling mixin 'features.render.world.sky.BackgroundRendererMixin' as rule 'mixin.features.render.world.sky' (added by mods [iris]) disables it and children [20:06:25] [main/WARN]: Force-disabling mixin 'features.render.world.sky.ClientWorldMixin' as rule 'mixin.features.render.world.sky' (added by mods [iris]) disables it and children [20:06:25] [main/WARN]: Force-disabling mixin 'features.render.world.sky.WorldRendererMixin' as rule 'mixin.features.render.world.sky' (added by mods [iris]) disables it and children [20:06:25] [main/INFO]: Searching for graphics cards... [20:06:25] [main/INFO]: Found graphics card: GraphicsAdapterInfo[vendor=AMD, name=AMD Radeon RX 7800 XT, version=DriverVersion=32.0.12019.1028] [20:06:25] [main/INFO]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.4.1). [20:06:25] [main/WARN]: Invalid registry value type detected for PerfOS counters. Should be REG_DWORD. Ignoring: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PerfOS\Performance\Disable Performance Counters. [20:06:26] [main/ERROR]: Minecraft has crashed! net.fabricmc.loader.impl.FormattedException: java.lang.UnsupportedClassVersionError: net/irisshaders/iris/Iris has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0 at net.fabricmc.loader.impl.FormattedException.ofLocalized(FormattedException.java:63) ~[fabric-loader-0.16.9.jar:?] at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:482) ~[fabric-loader-0.16.9.jar:?] at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74) ~[fabric-loader-0.16.9.jar:?] at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) ~[fabric-loader-0.16.9.jar:?] at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:105) ~[NewLaunch.jar:?] at org.prismlauncher.EntryPoint.listen(EntryPoint.java:129) ~[NewLaunch.jar:?] at org.prismlauncher.EntryPoint.main(EntryPoint.java:70) ~[NewLaunch.jar:?] Caused by: java.lang.UnsupportedClassVersionError: net/irisshaders/iris/Iris has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0 at java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:?] at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:?] at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.defineClassFwd(KnotClassLoader.java:160) ~[fabric-loader-0.16.9.jar:?] at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:355) ~[fabric-loader-0.16.9.jar:?] at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:218) ~[fabric-loader-0.16.9.jar:?] at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) ~[fabric-loader-0.16.9.jar:?] at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:?] at net.minecraft.class_6396.handler$zpa001$iris$fillSystemDetails(class_6396.java:1023) ~[client-intermediary.jar:?] at net.minecraft.class_6396.(class_6396.java:58) ~[client-intermediary.jar:?] at net.minecraft.class_128.(class_128.java:36) ~[client-intermediary.jar:?] at net.minecraft.class_128.method_24305(class_128.java:277) ~[client-intermediary.jar:?] at net.minecraft.client.main.Main.main(Main.java:167) ~[minecraft-1.20.4-client.jar:?] at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480) ~[fabric-loader-0.16.9.jar:?] ... 5 more Process exited with code 1. Clipboard copy at: 09 Nov 2024 20:14:08 +0000 Clipboard copy at: 09 Nov 2024 20:15:03 +0000

[hoi4dude]

install the most recent version of openJDK with this tutorial: https://minecrafthopper.net/help/installing-java/

ignore the compatibility chart they give, just install the most recent version of openJDK.

and then to change the java version minecraft will use, follow this tutorial: https://minecrafthopper.net/help/guides/changing-java-version/

it worked for me, so I don't see a reason why it wouldn't work for you too.

[GJHighlander]

As I said, I have already tried multiple versions of java, but none of them want to work, I still get the same error unfortunately.

[Kimizuky]

I got the same thing, no matter which java version

[Redi2Go]

You will need java 22, and you have to really make sure, your launcher is using java 22.

I will make sure, to compile upcoming releases with older versions of java to increase compatibility

[GJHighlander]

Ah I see, I tried multiple versions of java but that was one I missed out lol, thanks for the suggestion I'll try it out. Edit: Using Java 22 worked, perfect thanks so much.