[1.17.1] runClient not working

C:\Users\ANDY\.gradle\caches\forge_gradle\assets --gameDir . --fml.forgeVersion 37.1.1 --fml.mcVersion 1.17.1 --fml.forgeGroup net.minecraftforge --fml.mcpVersion 20210706.113038
2022-02-26 02:06:59,346 main WARN Advanced terminal features are not available in this environment
[02:06:59] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--launchTarget, forgeclientuserdev, --version, MOD_DEV, --assetIndex, 1.17, --assetsDir, C:\Users\ANDY\.gradle\caches\forge_gradle\assets, --gameDir, ., --fml.forgeVersion, 37.1.1, --fml.mcVersion, 1.17.1, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20210706.113038]
[02:06:59] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 9.0.24+9.0.24+main.7be9f01d starting: java version 16.0.2 by Oracle Corporation
[02:06:59] [main/DEBUG] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Found launch services [fmlclientdev,forgeclient,minecraft,fmlserveruserdev,fmlclient,fmldatauserdev,forgeserverdev,forgeserveruserdev,forgeclientdev,forgeclientuserdev,forgeserver,forgedatadev,fmlserver,fmlclientuserdev,fmlserverdev,forgedatauserdev,testharness]
[02:06:59] [main/DEBUG] [cp.mo.mo.NameMappingServiceHandler/MODLAUNCHER]: Found naming services : [srgtomcp]
[02:06:59] [main/DEBUG] [cp.mo.mo.LaunchPluginHandler/MODLAUNCHER]: Found launch plugins: [mixin,eventbus,object_holder_definalize,runtime_enum_extender,capability_token_subclass,capability_inject_definalize,accesstransformer,runtimedistcleaner]
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServicesHandler/MODLAUNCHER]: Discovering transformation services
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServicesHandler/MODLAUNCHER]: Found additional transformation services from discovery services: java.util.stream.ReferencePipeline$3@2320fa6f
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServicesHandler/MODLAUNCHER]: Found transformer services : [mixin,fml]
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServicesHandler/MODLAUNCHER]: Transformation services loading
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Loading service mixin
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Loaded service mixin
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Loading service fml
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.LauncherVersion/CORE]: Found FMLLauncher version 1.0
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLLoader/CORE]: FML 1.0 loading
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLLoader/CORE]: FML found ModLauncher version : 9.0.24+9.0.24+main.7be9f01d
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLLoader/CORE]: FML found AccessTransformer version : 8.0.4+66+master.c09db6d7
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLLoader/CORE]: FML found EventBus version : 5.0.7+5.0.7+master.6d3407cc
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLLoader/CORE]: Found Runtime Dist Cleaner
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLLoader/CORE]: FML found CoreMod version : 5.0.2+5.0.2+master.303343f8
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLLoader/CORE]: Found ForgeSPI package implementation version 4.0.11+4.0.11+master.ce88bbba
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLLoader/CORE]: Found ForgeSPI package specification 4
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Loaded service fml
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServicesHandler/MODLAUNCHER]: Configuring option handling for services
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServicesHandler/MODLAUNCHER]: Transformation services initializing
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Initializing transformation service mixin
[02:06:59] [main/DEBUG] [mixin/]: MixinService [ModLauncher] was successfully booted in cpw.mods.cl.ModuleClassLoader@77846d2c
[02:06:59] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.4 Source=union:/C:/Users/ANDY/.gradle/caches/modules-2/files-2.1/org.spongepowered/mixin/0.8.4/4ec7d77d9ab32596ca0b78bb123956734767e3a/mixin-0.8.4.jar%2325! Service=ModLauncher Env=CLIENT
[02:06:59] [main/DEBUG] [mixin/]: Initialising Mixin Platform Manager
[02:06:59] [main/DEBUG] [mixin/]: Adding mixin platform agents for container ModLauncher Root Container(ModLauncher:4f56a0a2)
[02:06:59] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentMinecraftForge for ModLauncher Root Container(ModLauncher:4f56a0a2)
[02:06:59] [main/DEBUG] [mixin/]: MixinPlatformAgentMinecraftForge rejected container ModLauncher Root Container(ModLauncher:4f56a0a2)
[02:06:59] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentDefault for ModLauncher Root Container(ModLauncher:4f56a0a2)
[02:06:59] [main/DEBUG] [mixin/]: MixinPlatformAgentDefault accepted container ModLauncher Root Container(ModLauncher:4f56a0a2)
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Initialized transformation service mixin
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Initializing transformation service fml
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLServiceProvider/CORE]: Setting up basic FML game directories
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FileUtils/CORE]: Found existing GAMEDIR directory : C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\run
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLPaths/CORE]: Path GAMEDIR is C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\run
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FileUtils/CORE]: Found existing MODSDIR directory : C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\run\mods
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLPaths/CORE]: Path MODSDIR is C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\run\mods
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FileUtils/CORE]: Found existing CONFIGDIR directory : C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\run\config
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLPaths/CORE]: Path CONFIGDIR is C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\run\config
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLPaths/CORE]: Path FMLCONFIG is C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\run\config\fml.toml
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLServiceProvider/CORE]: Loading configuration
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FileUtils/CORE]: Found existing default config directory directory : C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\run\defaultconfigs
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLServiceProvider/CORE]: Preparing ModFile
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLServiceProvider/CORE]: Preparing launch handler
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLLoader/CORE]: Using forgeclientuserdev as launch service
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLLoader/CORE]: Received command line version data  : VersionInfo[forgeVersion=37.1.1, mcVersion=1.17.1, mcpVersion=20210706.113038, forgeGroup=net.minecraftforge]
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Initialized transformation service fml
[02:06:59] [main/DEBUG] [cp.mo.mo.NameMappingServiceHandler/MODLAUNCHER]: Current naming domain is 'mcp'
[02:06:59] [main/DEBUG] [cp.mo.mo.NameMappingServiceHandler/MODLAUNCHER]: Identified name mapping providers {srg=srgtomcp:1234}
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServicesHandler/MODLAUNCHER]: Transformation services begin scanning
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Beginning scan trigger - transformation service mixin
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: End scan trigger - transformation service mixin
[02:06:59] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Beginning scan trigger - transformation service fml
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.FMLServiceProvider/CORE]: Initiating mod scan
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.mo.ModListHandler/CORE]: Found mod coordinates from lists: []
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.mo.ModDiscoverer/CORE]: Found Mod Locators : (mods folder:null),(maven libs:null),(exploded directory:null),(minecraft:null),(userdev classpath:null)
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.ta.CommonLaunchHandler/CORE]: Got mod coordinates examplemod%%C:/Users/ANDY/Desktop/Minecraft Modding/BurnerGun_1.17.1\build\resources\main;examplemod%%C:/Users/ANDY/Desktop/Minecraft Modding/BurnerGun_1.17.1\build\classes\java\main from env
[02:06:59] [main/DEBUG] [ne.mi.fm.lo.ta.CommonLaunchHandler/CORE]: Found supplied mod coordinates [{examplemod=[C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\build\resources\main, C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\build\classes\java\main]}]
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileInfo/LOADING]: Found valid mod file forge-1.17.1-37.1.1_mapped_official_1.17.1-recomp.jar with {minecraft} mods - versions {1.17.1}
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFile/LOADING]: Loading mod file C:\Users\ANDY\.gradle\caches\forge_gradle\minecraft_user_repo\net\minecraftforge\forge\1.17.1-37.1.1_mapped_official_1.17.1\forge-1.17.1-37.1.1_mapped_official_1.17.1-recomp.jar with languages [LanguageSpec[languageName=minecraft, acceptedVersions=1]]
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Considering mod file candidate C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\build\resources\main
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileInfo/LOADING]: Found valid mod file main with {burnergun} mods - versions {4.0.0}
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFile/LOADING]: Loading mod file C:\Users\ANDY\Desktop\Minecraft Modding\BurnerGun_1.17.1\build\resources\main with languages [LanguageSpec[languageName=javafml, acceptedVersions=[37,)]]
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Considering mod file candidate 
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileInfo/LOADING]: Found valid mod file  with {forge} mods - versions {37.1.1}
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFile/LOADING]: Loading mod file  with languages [LanguageSpec[languageName=javafml, acceptedVersions=[24,]]]
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Found coremod field_to_method with Javascript path coremods/field_to_method.js
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Found coremod field_to_instanceof with Javascript path coremods/field_to_instanceof.js
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Found coremod add_bouncer_method with Javascript path coremods/add_bouncer_method.js
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFile/LOADING]: Found coremod coremods/field_to_method.js
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFile/LOADING]: Found coremod coremods/field_to_instanceof.js
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFile/LOADING]: Found coremod coremods/add_bouncer_method.js
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Considering mod file candidate C:\Users\ANDY\.gradle\caches\forge_gradle\deobf_dependencies\mezz\jei\jei-1.17.1\8.3.1.62_mapped_official_1.17.1\jei-1.17.1-8.3.1.62_mapped_official_1.17.1.jar
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileInfo/LOADING]: Found valid mod file jei-1.17.1-8.3.1.62_mapped_official_1.17.1.jar with {jei} mods - versions {8.3.1.62}
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFile/LOADING]: Loading mod file C:\Users\ANDY\.gradle\caches\forge_gradle\deobf_dependencies\mezz\jei\jei-1.17.1\8.3.1.62_mapped_official_1.17.1\jei-1.17.1-8.3.1.62_mapped_official_1.17.1.jar with languages [LanguageSpec[languageName=javafml, acceptedVersions=[37,)]]
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Considering mod file candidate C:\Users\ANDY\.gradle\caches\forge_gradle\deobf_dependencies\mezz\jei\jei-1.17.1\8.3.1.62_mapped_official_1.17.1\jei-1.17.1-8.3.1.62_mapped_official_1.17.1.jar
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFileInfo/LOADING]: Found valid mod file jei-1.17.1-8.3.1.62_mapped_official_1.17.1.jar with {jei} mods - versions {8.3.1.62}
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.mo.ModFile/LOADING]: Loading mod file C:\Users\ANDY\.gradle\caches\forge_gradle\deobf_dependencies\mezz\jei\jei-1.17.1\8.3.1.62_mapped_official_1.17.1\jei-1.17.1-8.3.1.62_mapped_official_1.17.1.jar with languages [LanguageSpec[languageName=javafml, acceptedVersions=[37,)]]
[02:07:00] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: End scan trigger - transformation service fml
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.LanguageLoadingProvider/CORE]: Found 2 language providers
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.LanguageLoadingProvider/CORE]: Found language provider minecraft, version 1.0
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.LanguageLoadingProvider/CORE]: Found language provider javafml, version 37
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.ModSorter/]: Found 2 mods for first modid jei, selecting most recent based on version data
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.ModSorter/]: Selected file jei-1.17.1-8.3.1.62_mapped_official_1.17.1.jar for modid jei with version 8.3.1.62
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.ModSorter/LOADING]: Found 4 mod requirements (4 mandatory, 0 optional)
[02:07:00] [main/DEBUG] [ne.mi.fm.lo.ModSorter/LOADING]: Found 0 mod requirements missing (0 mandatory, 0 optional)
[02:07:01] [main/DEBUG] [ne.mi.fm.lo.MCPNamingService/CORE]: Loaded 26870 method mappings from methods.csv
[02:07:01] [main/DEBUG] [ne.mi.fm.lo.MCPNamingService/CORE]: Loaded 25986 field mappings from fields.csv
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformationServicesHandler/MODLAUNCHER]: Transformation services loading transformers
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Initializing transformers for transformation service mixin
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Initialized transformers for transformation service mixin
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Initializing transformers for transformation service fml
[02:07:01] [main/DEBUG] [ne.mi.fm.lo.FMLServiceProvider/CORE]: Loading coremod transformers
[02:07:01] [main/DEBUG] [ne.mi.co.CoreModEngine/COREMOD]: Loading CoreMod from coremods/field_to_method.js
[02:07:01] [main/DEBUG] [ne.mi.co.CoreModEngine/COREMOD]: CoreMod loaded successfully
[02:07:01] [main/DEBUG] [ne.mi.co.CoreModEngine/COREMOD]: Loading CoreMod from coremods/field_to_instanceof.js
[02:07:01] [main/DEBUG] [ne.mi.co.CoreModEngine/COREMOD]: CoreMod loaded successfully
[02:07:01] [main/DEBUG] [ne.mi.co.CoreModEngine/COREMOD]: Loading CoreMod from coremods/add_bouncer_method.js
[02:07:01] [main/DEBUG] [ne.mi.co.CoreModEngine/COREMOD]: CoreMod loaded successfully
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@5f117b3d to Target : CLASS {Lnet/minecraft/world/effect/MobEffectInstance;} {} {V}
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@a7ad6e5 to Target : CLASS {Lnet/minecraft/world/level/block/LiquidBlock;} {} {V}
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@3b1ed14b to Target : CLASS {Lnet/minecraft/world/item/BucketItem;} {} {V}
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@690bc15e to Target : CLASS {Lnet/minecraft/world/level/block/StairBlock;} {} {V}
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@1bc776b7 to Target : CLASS {Lnet/minecraft/world/level/block/FlowerPotBlock;} {} {V}
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@475646d4 to Target : CLASS {Lnet/minecraft/world/item/ItemStack;} {} {V}
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@a0f53fc to Target : CLASS {Lnet/minecraft/network/play/client/CClientSettingsPacket;} {} {V}
[02:07:01] [main/DEBUG] [cp.mo.mo.TransformationServiceDecorator/MODLAUNCHER]: Initialized transformers for transformation service fml
[02:07:02] [main/DEBUG] [mixin/]: Processing prepare() for PlatformAgent[MixinPlatformAgentDefault:ModLauncher Root Container(ModLauncher:4f56a0a2)]
[02:07:02] [main/DEBUG] [mixin/]: Processing launch tasks for PlatformAgent[MixinPlatformAgentDefault:ModLauncher Root Container(ModLauncher:4f56a0a2)]
[02:07:02] [main/DEBUG] [mixin/]: Adding mixin platform agents for container SecureJarResource(minecraft)
[02:07:02] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentMinecraftForge for SecureJarResource(minecraft)
[02:07:02] [main/DEBUG] [mixin/]: MixinPlatformAgentMinecraftForge rejected container SecureJarResource(minecraft)
[02:07:02] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentDefault for SecureJarResource(minecraft)
[02:07:02] [main/DEBUG] [mixin/]: MixinPlatformAgentDefault accepted container SecureJarResource(minecraft)
[02:07:02] [main/DEBUG] [mixin/]: Processing prepare() for PlatformAgent[MixinPlatformAgentDefault:SecureJarResource(minecraft)]
[02:07:02] [main/DEBUG] [mixin/]: Adding mixin platform agents for container SecureJarResource(burnergun)
[02:07:02] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentMinecraftForge for SecureJarResource(burnergun)
[02:07:02] [main/DEBUG] [mixin/]: MixinPlatformAgentMinecraftForge rejected container SecureJarResource(burnergun)
[02:07:02] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentDefault for SecureJarResource(burnergun)
[02:07:02] [main/DEBUG] [mixin/]: MixinPlatformAgentDefault accepted container SecureJarResource(burnergun)
[02:07:02] [main/DEBUG] [mixin/]: Processing prepare() for PlatformAgent[MixinPlatformAgentDefault:SecureJarResource(burnergun)]
[02:07:02] [main/DEBUG] [mixin/]: Adding mixin platform agents for container SecureJarResource(forge)
[02:07:02] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentMinecraftForge for SecureJarResource(forge)
[02:07:02] [main/DEBUG] [mixin/]: MixinPlatformAgentMinecraftForge rejected container SecureJarResource(forge)
[02:07:02] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentDefault for SecureJarResource(forge)
[02:07:02] [main/DEBUG] [mixin/]: MixinPlatformAgentDefault accepted container SecureJarResource(forge)
[02:07:02] [main/DEBUG] [mixin/]: Processing prepare() for PlatformAgent[MixinPlatformAgentDefault:SecureJarResource(forge)]
[02:07:02] [main/DEBUG] [mixin/]: Adding mixin platform agents for container SecureJarResource(jei)
[02:07:02] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentMinecraftForge for SecureJarResource(jei)
[02:07:02] [main/DEBUG] [mixin/]: MixinPlatformAgentMinecraftForge rejected container SecureJarResource(jei)
[02:07:02] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentDefault for SecureJarResource(jei)
[02:07:02] [main/DEBUG] [mixin/]: MixinPlatformAgentDefault accepted container SecureJarResource(jei)
[02:07:02] [main/DEBUG] [mixin/]: Processing prepare() for PlatformAgent[MixinPlatformAgentDefault:SecureJarResource(jei)]
[02:07:02] [main/DEBUG] [mixin/]: inject() running with 5 agents
[02:07:02] [main/DEBUG] [mixin/]: Processing inject() for PlatformAgent[MixinPlatformAgentDefault:ModLauncher Root Container(ModLauncher:4f56a0a2)]
[02:07:02] [main/DEBUG] [mixin/]: Processing inject() for PlatformAgent[MixinPlatformAgentDefault:SecureJarResource(minecraft)]
[02:07:02] [main/DEBUG] [mixin/]: Processing inject() for PlatformAgent[MixinPlatformAgentDefault:SecureJarResource(burnergun)]
[02:07:02] [main/DEBUG] [mixin/]: Processing inject() for PlatformAgent[MixinPlatformAgentDefault:SecureJarResource(forge)]
[02:07:02] [main/DEBUG] [mixin/]: Processing inject() for PlatformAgent[MixinPlatformAgentDefault:SecureJarResource(jei)]
[02:07:02] [main/INFO] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeclientuserdev' with arguments [--version, MOD_DEV, --gameDir, ., --assetsDir, C:\Users\ANDY\.gradle\caches\forge_gradle\assets, --assetIndex, 1.17]
[02:07:02] [main/DEBUG] [mixin/]: Error cleaning class output directory: .mixin.out
[02:07:02] [main/DEBUG] [mixin/]: Preparing mixins for MixinEnvironment[DEFAULT]
Exception in thread "main" java.lang.RuntimeException: java.lang.StringIndexOutOfBoundsException: begin 0, end -1, length 3
	at MC-BOOTSTRAP/cpw.mods.modlauncher@9.0.24/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:39)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@9.0.24/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@9.0.24/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@9.0.24/cpw.mods.modlauncher.Launcher.run(Launcher.java:106)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@9.0.24/cpw.mods.modlauncher.Launcher.main(Launcher.java:77)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@9.0.24/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@9.0.24/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23)
	at cpw.mods.bootstraplauncher@0.1.17/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:90)
Caused by: java.lang.StringIndexOutOfBoundsException: begin 0, end -1, length 3
	at java.base/java.lang.String.checkBoundsBeginEnd(String.java:3751)
	at java.base/java.lang.String.substring(String.java:1907)
	at cpw.mods.securejarhandler@0.9.54/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:128)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519)
	at java.base/java.lang.Class.getDeclaredMethods0(Native Method)
	at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3334)
	at java.base/java.lang.Class.getMethodsRecursive(Class.java:3475)
	at java.base/java.lang.Class.getMethod0(Class.java:3461)
	at java.base/java.lang.Class.getMethod(Class.java:2193)
	at MC-BOOTSTRAP/fmlloader@1.17.1-37.1.1/net.minecraftforge.fml.loading.targets.ForgeClientUserdevLaunchHandler.lambda$launchService$0(ForgeClientUserdevLaunchHandler.java:38)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@9.0.24/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
	... 7 more

Process finished with exit code 1

https://github.com/NindyBun/BurnerGun_1.17.1

So I was migrated my 1.16.5 mod into 1.17.1-37.1.1 and after relocating files and methods, I ran the runClient but it gave me an error and I don't know why. So if anyone has an idea, it would be greatly appreciated.