Jump to content

Could not find or load main class net.minecraft.launchwrapper.Launch


Notrum666

Recommended Posts

i've wrote my own small launcher, also as parser of .json file, i'm parsing all lib and flags, trying to launch minecraft with forge (vanilla is launching, if i'm just giving to parser vanilla .json - everything is ok), but there is no main class, i searched manually in 1.7.10.jar file (folder net/minecraft does not have folder launchwrapper), i tried to reinstall minecraft, tried to reinstall forge, this class is still missing (if i'm manually changing it to default minecraft main class - it launches vanilla and also ignoring flag about class tweaking), any ideas? don't think my code needs to be here, or error text (code are long and complicated(but works), error is short and simple)

Link to comment
Share on other sites

1 minute ago, Notrum666 said:

 

Thank you for not helping me.

Seriously, if you cannot figure out how to even launch the game properly, how do you have the programming abilities to securely manage the user's login details? Especially for a service (Mojang) that's not yours? This is very very shady at best.

Do not do it.

Link to comment
Share on other sites

It's also against Mojang's express wishes if you are creating your own Launcher.

They do not want anyone to enter their logic credentials into anything that is not official.

And if you dont take launch credentials then you're letting anyone play the game without buying it.

So... neither of these cases we support.

I do Forge for free, however the servers to run it arn't free, so anything is appreciated.
Patreon: http://www.patreon.com/lexmanos
Paypal: http://paypal.me/LexManos

BitCoin: 1Q8rWvUNMM2T1ZfDaFeeYQyVXtYoeT6tTn

Link to comment
Share on other sites

15 minutes ago, diesieben07 said:

Seriously, if you cannot figure out how to even launch the game properly, how do you have the programming abilities to securely manage the user's login details? Especially for a service (Mojang) that's not yours? This is very very shady at best.

Do not do it.

This launcher is for ~20 people which want to play with mods not on licensed minecraft, nothing more, i don't need to secure anything, also i can launch vanilla minecraft, just can't figure out where can i get missing file, cause nor with minecraft nor with forge it's not being installed.

Link to comment
Share on other sites

2 minutes ago, LexManos said:

It's also against Mojang's express wishes if you are creating your own Launcher.

They do not want anyone to enter their logic credentials into anything that is not official.

And if you dont take launch credentials then you're letting anyone play the game without buying it.

So... neither of these cases we support.

That an obstructive answer, thanks, i'll leave then and continue my searches

Link to comment
Share on other sites

Guest
This topic is now closed to further replies.


  • Recently Browsing

    • No registered users viewing this page.
  • Posts

    • what did u do to solve this problem?? i have the same error and crashes when putting coal in furnace
    • i tried java 17 getting this    C:\Users\user\Desktop\Minecraft server april>REM Forge requires a configured set of both JVM and program arguments. C:\Users\user\Desktop\Minecraft server april>REM Add custom JVM arguments to the user_jvm_args.txt C:\Users\user\Desktop\Minecraft server april>REM Add custom program arguments {such as nogui} to this file in the next line before the  or C:\Users\user\Desktop\Minecraft server april>REM  pass them to this script directly C:\Users\user\Desktop\Minecraft server april>java @user_jvm_args.txt @libraries/net/minecraftforge/forge/1.18.2-40.2.0/win_args.txt 2023-03-31 20:34:50,316 main WARN Advanced terminal features are not available in this environment [20:34:50] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--launchTarget, forgeserver, --fml.forgeVersion, 40.2.0, --fml.mcVersion, 1.18.2, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20220404.173914] [20:34:50] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 9.1.3+9.1.3+main.9b69c82a starting: java version 20 by Oracle Corporation [20:34:50] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.5 Source=union:/C:/Users/user/Desktop/Minecraft%20server%20april/libraries/org/spongepowered/mixin/0.8.5/mixin-0.8.5.jar%2314!/ Service=ModLauncher Env=SERVER [20:34:51] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\user\Desktop\Minecraft server april\libraries\net\minecraftforge\fmlcore\1.18.2-40.2.0\fmlcore-1.18.2-40.2.0.jar is missing mods.toml file [20:34:51] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\user\Desktop\Minecraft server april\libraries\net\minecraftforge\javafmllanguage\1.18.2-40.2.0\javafmllanguage-1.18.2-40.2.0.jar is missing mods.toml file [20:34:51] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\user\Desktop\Minecraft server april\libraries\net\minecraftforge\lowcodelanguage\1.18.2-40.2.0\lowcodelanguage-1.18.2-40.2.0.jar is missing mods.toml file [20:34:51] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\user\Desktop\Minecraft server april\libraries\net\minecraftforge\mclanguage\1.18.2-40.2.0\mclanguage-1.18.2-40.2.0.jar is missing mods.toml file [20:34:51] [main/INFO] [ne.mi.fm.lo.mo.JarInJarDependencyLocator/]: No dependencies to load found. Skipping! [20:34:53] [main/INFO] [mixin/]: Compatibility level set to JAVA_17 [20:34:53] [main/INFO] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeserver' with arguments [] [20:34:53] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [20:34:53] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [20:34:53] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [20:34:53] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [20:34:53] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [20:34:53] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [20:34:53] [main/WARN] [mixin/]: Error loading class: java/util/Map$Entry (java.lang.IllegalArgumentException: Unsupported class file major version 64) [20:34:53] [main/WARN] [mixin/]: Error loading class: java/util/concurrent/CompletableFuture (java.lang.IllegalArgumentException: Unsupported class file major version 64) Exception in thread "main" org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:392)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:250)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.service.modlauncher.MixinTransformationHandler.processClass(MixinTransformationHandler.java:131)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.launch.MixinLaunchPluginLegacy.processClass(MixinLaunchPluginLegacy.java:131)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.serviceapi.ILaunchPluginService.processClassWithFlags(ILaunchPluginService.java:156)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:88)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.TransformingClassLoader.maybeTransformClassBytes(TransformingClassLoader.java:50)         at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:110)         at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.lambda$findClass$16(ModuleClassLoader.java:216)         at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:226)         at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:216)         at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:132)         at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)         at java.base/java.lang.Class.getDeclaredMethods0(Native Method)         at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3502)         at java.base/java.lang.Class.getMethodsRecursive(Class.java:3643)         at java.base/java.lang.Class.getMethod0(Class.java:3629)         at java.base/java.lang.Class.getMethod(Class.java:2319)         at MC-BOOTSTRAP/fmlloader@1.18.2-40.2.0/net.minecraftforge.fml.loading.targets.CommonServerLaunchHandler.lambda$launchService$0(CommonServerLaunchHandler.java:32)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.Launcher.run(Launcher.java:106)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.Launcher.main(Launcher.java:77)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23)         at cpw.mods.bootstraplauncher@1.0.0/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) Caused by: org.spongepowered.asm.mixin.throwables.ClassMetadataNotFoundException: java.util.concurrent.CompletableFuture         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transformMethod(MixinPreProcessorStandard.java:754)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transform(MixinPreProcessorStandard.java:739)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attach(MixinPreProcessorStandard.java:310)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.createContextFor(MixinPreProcessorStandard.java:280)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinInfo.createContextFor(MixinInfo.java:1288)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:292)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:383)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:365)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363)         ... 27 more C:\Users\user\Desktop\Minecraft server april>pause Press any key to continue . . .  
    • C:\Users\user\Desktop\Minecraft server april>REM Forge requires a configured set of both JVM and program arguments. C:\Users\user\Desktop\Minecraft server april>REM Add custom JVM arguments to the user_jvm_args.txt C:\Users\user\Desktop\Minecraft server april>REM Add custom program arguments {such as nogui} to this file in the next line before the  or C:\Users\user\Desktop\Minecraft server april>REM  pass them to this script directly C:\Users\user\Desktop\Minecraft server april>java @user_jvm_args.txt @libraries/net/minecraftforge/forge/1.18.2-40.2.0/win_args.txt 2023-03-31 19:29:54,089 main WARN Advanced terminal features are not available in this environment [19:29:54] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--launchTarget, forgeserver, --fml.forgeVersion, 40.2.0, --fml.mcVersion, 1.18.2, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20220404.173914] [19:29:54] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 9.1.3+9.1.3+main.9b69c82a starting: java version 20 by Oracle Corporation [19:29:54] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.5 Source=union:/C:/Users/user/Desktop/Minecraft%20server%20april/libraries/org/spongepowered/mixin/0.8.5/mixin-0.8.5.jar%2314!/ Service=ModLauncher Env=SERVER [19:29:54] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\user\Desktop\Minecraft server april\libraries\net\minecraftforge\fmlcore\1.18.2-40.2.0\fmlcore-1.18.2-40.2.0.jar is missing mods.toml file [19:29:54] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\user\Desktop\Minecraft server april\libraries\net\minecraftforge\javafmllanguage\1.18.2-40.2.0\javafmllanguage-1.18.2-40.2.0.jar is missing mods.toml file [19:29:54] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\user\Desktop\Minecraft server april\libraries\net\minecraftforge\lowcodelanguage\1.18.2-40.2.0\lowcodelanguage-1.18.2-40.2.0.jar is missing mods.toml file [19:29:54] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\user\Desktop\Minecraft server april\libraries\net\minecraftforge\mclanguage\1.18.2-40.2.0\mclanguage-1.18.2-40.2.0.jar is missing mods.toml file [19:29:54] [main/INFO] [ne.mi.fm.lo.mo.JarInJarDependencyLocator/]: No dependencies to load found. Skipping! [19:29:56] [main/INFO] [mixin/]: Compatibility level set to JAVA_17 [19:29:56] [main/INFO] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeserver' with arguments [] [19:29:56] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [19:29:56] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [19:29:56] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [19:29:56] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [19:29:56] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [19:29:56] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 64) [19:29:56] [main/WARN] [mixin/]: Error loading class: java/util/Map$Entry (java.lang.IllegalArgumentException: Unsupported class file major version 64) [19:29:56] [main/WARN] [mixin/]: Error loading class: java/util/concurrent/CompletableFuture (java.lang.IllegalArgumentException: Unsupported class file major version 64) Exception in thread "main" org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:392)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:250)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.service.modlauncher.MixinTransformationHandler.processClass(MixinTransformationHandler.java:131)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.launch.MixinLaunchPluginLegacy.processClass(MixinLaunchPluginLegacy.java:131)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.serviceapi.ILaunchPluginService.processClassWithFlags(ILaunchPluginService.java:156)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:88)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.TransformingClassLoader.maybeTransformClassBytes(TransformingClassLoader.java:50)         at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:110)         at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.lambda$findClass$16(ModuleClassLoader.java:216)         at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:226)         at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:216)         at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:132)         at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)         at java.base/java.lang.Class.getDeclaredMethods0(Native Method)         at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3502)         at java.base/java.lang.Class.getMethodsRecursive(Class.java:3643)         at java.base/java.lang.Class.getMethod0(Class.java:3629)         at java.base/java.lang.Class.getMethod(Class.java:2319)         at MC-BOOTSTRAP/fmlloader@1.18.2-40.2.0/net.minecraftforge.fml.loading.targets.CommonServerLaunchHandler.lambda$launchService$0(CommonServerLaunchHandler.java:32)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.Launcher.run(Launcher.java:106)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.Launcher.main(Launcher.java:77)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26)         at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23)         at cpw.mods.bootstraplauncher@1.0.0/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) Caused by: org.spongepowered.asm.mixin.throwables.ClassMetadataNotFoundException: java.util.concurrent.CompletableFuture         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transformMethod(MixinPreProcessorStandard.java:754)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transform(MixinPreProcessorStandard.java:739)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attach(MixinPreProcessorStandard.java:310)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.createContextFor(MixinPreProcessorStandard.java:280)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinInfo.createContextFor(MixinInfo.java:1288)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:292)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:383)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:365)         at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363)         ... 27 more C:\Users\user\Desktop\Minecraft server april>pause Press any key to continue . . .        
    • TYSM I tried installing java 17 before posting on the forum, today I removed java 20 and everything works fine
  • Topics

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.