[[Solved] Custom 1.20 Mod Pack Error Code 1 due to duplicate mods]

 I figured out what mod was duplicated, thank you.

[[Solved] Custom 1.20 Mod Pack Error Code 1 due to duplicate mods]

I cant load my mod pack and it will crash and give me error code 1, all I would like to know is what is giving me this issue

 

Latest Log

Spoiler

[22Jul2023 11:39:36.110] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher running: args [--username, NanoWano90, --version, forge-46.0.14, --gameDir, C:\Users\kaids\curseforge\minecraft\Instances\Client Side Mods, --assetsDir, C:\Users\kaids\curseforge\minecraft\Install\assets, --assetIndex, 5, --uuid, c7186288ccae4735b5debb4eb5badb08, --accessToken, ????????, --clientId, YzA4OWQxODktMmEyNS00ZjM5LWJhNWUtMzk5MTU2NDA1OTdj, --xuid, 2535431459704944, --userType, msa, --versionType, release, --width, 1920, --height, 1080, --launchTarget, forgeclient, --fml.forgeVersion, 46.0.14, --fml.mcVersion, 1.20, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20230608.053357]
[22Jul2023 11:39:36.115] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher 10.0.8+10.0.8+main.0ef7e830 starting: java version 17.0.3 by Microsoft; OS Windows 11 arch amd64 version 10.0
[22Jul2023 11:39:37.198] [main/INFO] [gg.essential.loader.stage1.EssentialLoaderBase/]: Starting Essential Loader (stage2) version 1.4.1 (4b3b87be87d34916028dffa85460d085) [stable]
[22Jul2023 11:39:37.204] [main/INFO] [optifine.OptiFineTransformationService/]: OptiFineTransformationService.onLoad
[22Jul2023 11:39:37.205] [main/INFO] [optifine.OptiFineTransformationService/]: OptiFine ZIP file URL: union:/C:/Users/kaids/curseforge/minecraft/Instances/Client%20Side%20Mods/mods/preview_OptiFine_1.20_HD_U_I5_pre5.jar%23203!/
[22Jul2023 11:39:37.210] [main/INFO] [optifine.OptiFineTransformationService/]: OptiFine ZIP file: C:\Users\kaids\curseforge\minecraft\Instances\Client Side Mods\mods\preview_OptiFine_1.20_HD_U_I5_pre5.jar
[22Jul2023 11:39:37.211] [main/INFO] [optifine.OptiFineTransformer/]: Target.PRE_CLASS is available
[22Jul2023 11:39:37.247] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.5 Source=union:/C:/Users/kaids/curseforge/minecraft/Install/libraries/org/spongepowered/mixin/0.8.5/mixin-0.8.5.jar%2399!/ Service=ModLauncher Env=CLIENT
[22Jul2023 11:39:37.257] [main/INFO] [optifine.OptiFineTransformationService/]: OptiFineTransformationService.initialize
[22Jul2023 11:39:37.451] [main/ERROR] [gg.essential.loader.stage2.EssentialLoaderBase/]: Error occurred fetching https://api.essential.gg/mods/v1/essential:essential/versions/stable/platforms/forge_1-20:
java.io.FileNotFoundException: https://api.essential.gg/mods/v1/essential:essential/versions/stable/platforms/forge_1-20
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1993) ~[?:?]
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1589) ~[?:?]
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:224) ~[?:?]
    at gg.essential.loader.stage2.EssentialLoaderBase.fetchJsonObject(EssentialLoaderBase.java:553) ~[?:?]
    at gg.essential.loader.stage2.EssentialLoaderBase.fetchLatestVersion(EssentialLoaderBase.java:574) ~[?:?]
    at gg.essential.loader.stage2.EssentialLoaderBase.loadMod(EssentialLoaderBase.java:252) ~[?:?]
    at gg.essential.loader.stage2.EssentialLoaderBase.load(EssentialLoaderBase.java:132) ~[?:?]
    at gg.essential.loader.stage2.EssentialTransformationService.beginScanning(EssentialTransformationService.java:180) ~[?:?]
    at gg.essential.loader.stage1.util.IDelegatingTransformationService.beginScanning(IDelegatingTransformationService.java:12) ~[?:?]
    at gg.essential.container.loader.stage0.util.IDelegatingTransformationService.beginScanning(IDelegatingTransformationService.java:12) ~[?:?]
    at cpw.mods.modlauncher.TransformationServiceDecorator.runScan(TransformationServiceDecorator.java:112) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.TransformationServicesHandler.lambda$runScanningTransformationServices$8(TransformationServicesHandler.java:100) ~[modlauncher-10.0.8.jar:?]
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?]
    at java.util.HashMap$ValueSpliterator.forEachRemaining(HashMap.java:1779) ~[?:?]
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?]
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?]
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:575) ~[?:?]
    at java.util.stream.AbstractPipeline.evaluateToArrayNode(AbstractPipeline.java:260) ~[?:?]
    at java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:616) ~[?:?]
    at java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:622) ~[?:?]
    at java.util.stream.ReferencePipeline.toList(ReferencePipeline.java:627) ~[?:?]
    at cpw.mods.modlauncher.TransformationServicesHandler.runScanningTransformationServices(TransformationServicesHandler.java:102) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.TransformationServicesHandler.initializeTransformationServices(TransformationServicesHandler.java:55) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:87) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?]
[22Jul2023 11:39:37.457] [main/ERROR] [gg.essential.loader.stage2.EssentialLoaderBase/]: url: https://api.essential.gg/mods/v1/essential:essential/versions/stable/platforms/forge_1-20
[22Jul2023 11:39:37.458] [main/ERROR] [gg.essential.loader.stage2.EssentialLoaderBase/]: cf-ray: 7ead1eebcf8910bf-ORD
[22Jul2023 11:39:37.458] [main/WARN] [gg.essential.loader.stage2.EssentialLoaderBase/]: Essential does not support the following game version: forge_1.20
[22Jul2023 11:39:37.698] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModFileParser/LOADING]: Mod file C:\Users\kaids\curseforge\minecraft\Install\libraries\net\minecraftforge\fmlcore\1.20-46.0.14\fmlcore-1.20-46.0.14.jar is missing mods.toml file
[22Jul2023 11:39:37.700] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModFileParser/LOADING]: Mod file C:\Users\kaids\curseforge\minecraft\Install\libraries\net\minecraftforge\javafmllanguage\1.20-46.0.14\javafmllanguage-1.20-46.0.14.jar is missing mods.toml file
[22Jul2023 11:39:37.702] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModFileParser/LOADING]: Mod file C:\Users\kaids\curseforge\minecraft\Install\libraries\net\minecraftforge\lowcodelanguage\1.20-46.0.14\lowcodelanguage-1.20-46.0.14.jar is missing mods.toml file
[22Jul2023 11:39:37.704] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModFileParser/LOADING]: Mod file C:\Users\kaids\curseforge\minecraft\Install\libraries\net\minecraftforge\mclanguage\1.20-46.0.14\mclanguage-1.20-46.0.14.jar is missing mods.toml file
[22Jul2023 11:39:37.720] [main/ERROR] [net.minecraftforge.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Failed to build unique mod list after mod discovery.
net.minecraftforge.fml.loading.EarlyLoadingException: Duplicate mods found
    at net.minecraftforge.fml.loading.UniqueModListBuilder.buildUniqueList(UniqueModListBuilder.java:78) ~[fmlloader-1.20-46.0.14.jar:1.0]
    at net.minecraftforge.fml.loading.moddiscovery.ModDiscoverer.discoverMods(ModDiscoverer.java:105) ~[fmlloader-1.20-46.0.14.jar:?]
    at net.minecraftforge.fml.loading.FMLLoader.beginModScan(FMLLoader.java:166) ~[fmlloader-1.20-46.0.14.jar:1.0]
    at net.minecraftforge.fml.loading.FMLServiceProvider.beginScanning(FMLServiceProvider.java:86) ~[fmlloader-1.20-46.0.14.jar:1.0]
    at cpw.mods.modlauncher.TransformationServiceDecorator.runScan(TransformationServiceDecorator.java:112) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.TransformationServicesHandler.lambda$runScanningTransformationServices$8(TransformationServicesHandler.java:100) ~[modlauncher-10.0.8.jar:?]
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?]
    at java.util.HashMap$ValueSpliterator.forEachRemaining(HashMap.java:1779) ~[?:?]
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?]
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?]
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:575) ~[?:?]
    at java.util.stream.AbstractPipeline.evaluateToArrayNode(AbstractPipeline.java:260) ~[?:?]
    at java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:616) ~[?:?]
    at java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:622) ~[?:?]
    at java.util.stream.ReferencePipeline.toList(ReferencePipeline.java:627) ~[?:?]
    at cpw.mods.modlauncher.TransformationServicesHandler.runScanningTransformationServices(TransformationServicesHandler.java:102) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.TransformationServicesHandler.initializeTransformationServices(TransformationServicesHandler.java:55) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:87) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.8.jar:?]
    at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?]
[22Jul2023 11:39:37.722] [main/ERROR] [net.minecraftforge.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Mod Discovery failed. Skipping dependency discovery.