So it's been a day since I had this problem. I just recently discovered about minecraft mods. I first installed MC Forge 1.15.2 and it works perfectly fine but the problem is, most mods requires the older version of forge and so I downloaded MC Forge 1.12.2. And FYI I downloaded forge from the recommended link. I installed a modpack from curseforge which is RLCraft (which is 1.12.2 also) and then followed the instructions from YT and I bet everything's doing well not until I launch my minecraft launcher and switch the profile to forge 1.12.2 and then clicked play. Nothing happens after I clicked play and I've been doing this for two days now and I don't seem to know what the problem is. This is my log.
[17:05:30] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[17:05:30] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[17:05:30] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[17:05:30] [main/DEBUG] [FML]: Injecting tracing printstreams for STDOUT/STDERR.
[17:05:30] [main/INFO] [FML]: Forge Mod Loader version 14.23.5.2838 for Minecraft 1.12.2 loading
[17:05:30] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_241, running on Windows 10:amd64:10.0, installed at C:\Program Files\Java\jre1.8.0_241
[17:05:30] [main/DEBUG] [FML]: Java classpath at launch is:
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.12.2-14.23.5.2838\forge-1.12.2-14.23.5.2838.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.12\launchwrapper-1.12.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\5.2\asm-all-5.2.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\jline\jline\3.5.1\jline-3.5.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\4.4.0\jna-4.4.0.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\typesafe\akka\akka-actor_2.11\2.3.3\akka-actor_2.11-2.3.3.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\typesafe\config\1.2.1\config-1.2.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-actors-migration_2.11\1.1.0\scala-actors-migration_2.11-1.1.0.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.11.1\scala-compiler-2.11.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\scala-lang\plugins\scala-continuations-library_2.11\1.0.2\scala-continuations-library_2.11-1.0.2.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\scala-lang\plugins\scala-continuations-plugin_2.11.1\1.0.2\scala-continuations-plugin_2.11.1-1.0.2.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.11.1\scala-library-2.11.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-parser-combinators_2.11\1.0.1\scala-parser-combinators_2.11-1.0.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-reflect\2.11.1\scala-reflect-2.11.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-swing_2.11\1.0.1\scala-swing_2.11-1.0.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-xml_2.11\1.0.2\scala-xml_2.11-1.0.2.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\5.0.3\jopt-simple-5.0.3.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.5.2\vecmath-1.5.2.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\apache\maven\maven-artifact\3.5.3\maven-artifact-3.5.3.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\mojang\patchy\1.1\patchy-1.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\oshi-project\oshi-core\1.1\oshi-core-1.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\4.4.0\jna-4.4.0.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\platform\3.4.0\platform-3.4.0.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\5.0.3\jopt-simple-5.0.3.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.1.9.Final\netty-all-4.1.9.Final.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\21.0\guava-21.0.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.5\commons-lang3-3.5.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.5\commons-io-2.5.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.10\commons-codec-1.10.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.8.0\gson-2.8.0.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.25\authlib-1.5.25.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.10.22\realms-1.10.22.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\it\unimi\dsi\fastutil\7.1.0\fastutil-7.1.0.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.8.1\log4j-api-2.8.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.8.1\log4j-core-2.8.1.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.4-nightly-20150209\lwjgl-2.9.4-nightly-20150209.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.4-nightly-20150209\lwjgl_util-2.9.4-nightly-20150209.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.4-nightly-20150209\lwjgl-platform-2.9.4-nightly-20150209-natives-windows.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\mojang\text2speech\1.10.3\text2speech-1.10.3.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\libraries\com\mojang\text2speech\1.10.3\text2speech-1.10.3-natives-windows.jar
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\versions\1.12.2\1.12.2.jar
[17:05:30] [main/DEBUG] [FML]: Java library path at launch is:
[17:05:30] [main/DEBUG] [FML]: C:\Users\culdh\AppData\Roaming\.minecraft\natives
[17:05:30] [main/ERROR] [LaunchWrapper]: Unable to launch
java.lang.RuntimeException: An error occurred trying to configure the Minecraft home at C:\Users\culdh\AppData\Roaming\.minecraft for Forge Mod Loader
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:111) ~[forge-1.12.2-14.23.5.2838.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:81) ~[forge-1.12.2-14.23.5.2838.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:42) ~[forge-1.12.2-14.23.5.2838.jar:?]
at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:141) ~[forge-1.12.2-14.23.5.2838.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
Caused by: java.lang.NoClassDefFoundError: org/apache/maven/artifact/versioning/ArtifactVersion
at net.minecraftforge.fml.relauncher.libraries.LibraryManager.findLibraryFolder(LibraryManager.java:126) ~[forge-1.12.2-14.23.5.2838.jar:?]
at net.minecraftforge.fml.relauncher.libraries.LibraryManager.setup(LibraryManager.java:77) ~[forge-1.12.2-14.23.5.2838.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:106) ~[forge-1.12.2-14.23.5.2838.jar:?]
... 5 more
Caused by: java.lang.ClassNotFoundException: org.apache.maven.artifact.versioning.ArtifactVersion
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_241]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_241]
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~[?:1.8.0_241]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_241]
at net.minecraftforge.fml.relauncher.libraries.LibraryManager.findLibraryFolder(LibraryManager.java:126) ~[forge-1.12.2-14.23.5.2838.jar:?]
at net.minecraftforge.fml.relauncher.libraries.LibraryManager.setup(LibraryManager.java:77) ~[forge-1.12.2-14.23.5.2838.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:106) ~[forge-1.12.2-14.23.5.2838.jar:?]
... 5 more
[17:05:30] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: net.minecraftforge.fml.relauncher.FMLSecurityManager$ExitTrappedException
[17:05:30] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraftforge.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:49)
[17:05:30] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.SecurityManager.checkExit(Unknown Source)
[17:05:30] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.Runtime.exit(Unknown Source)
[17:05:30] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.System.exit(Unknown Source)
[17:05:30] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:138)
[17:05:30] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
-Modpacks need a modpack launcher (Twitch, Technic, FTB, AT, MultiMC, etc.) to run, not the regular launcher.
-Versions are important, 1.12.2 & 1.15.2 are not compatible, as well as Modloaders (Forge, Fabric, Liteloader, etc.)
-If you want mods from different versions to run, separate them with folders, 1.15.2 and 1.12.2 mods will crash if they conflict and expect Forge 1.12.2 or 1.15.2 to be able to work as changes happened between them. Sure you get 1.9.4 & 1.10.2 mods to work but it's not common.
2.Double click the Installer, make it client and it will do the rest once you hit install.
3.Go to your .minecraft folder (%appdata% in the Windows search bar makes it easy to find besides the regular launcher if you go to the profile and then the game directory browse button).
4.You can put mods into the mods folder, but put a 1.12.2 or 1.15.2 to separate them (1.12.2 and below it will make mods work no problem, 1.15.2 mods don't load in extra folders you have for separating so you have to move mods in and out of the mods folder to load them, 1.12.2 this is no problem).
If you want to make sure Forge installed properly check your launcher once you have closed it and relaunched it, if a Forge profile isn't there create one, same with the mods folder, create one if one didn't when Forge was installing.
There is many install videos, you just have to find the right trustworthy one out there as many as quick to say 'install 1.13.2' and it's installing 1.12.2 when the 1.13.2 one wasn't out yet or otherwise.
Rollback Post to RevisionRollBack
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
I did not install any 1.15 mods. I just opened 1.15 forge and it worked perfectly fine. Before it opened, it loaded for mods. What's in my mod files are pure 1.12.2 mods only. And I did try to make a new folder for RLCraft but again it's no use so I re-installed my minecraft and what I did is I put all the files from the RLCraft zip directly to the .minecraft folder of mine and still, no use,
So it's been a day since I had this problem. I just recently discovered about minecraft mods. I first installed MC Forge 1.15.2 and it works perfectly fine but the problem is, most mods requires the older version of forge and so I downloaded MC Forge 1.12.2. And FYI I downloaded forge from the recommended link. I installed a modpack from curseforge which is RLCraft (which is 1.12.2 also) and then followed the instructions from YT and I bet everything's doing well not until I launch my minecraft launcher and switch the profile to forge 1.12.2 and then clicked play. Nothing happens after I clicked play and I've been doing this for two days now and I don't seem to know what the problem is. This is my log.
What did you do with the 1.15 mods? Did you move them to a separate folder? Did you make new Game Directory folders for the RLCraft pack?
"We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far."
You'll want to keep this in mind:
-Modpacks need a modpack launcher (Twitch, Technic, FTB, AT, MultiMC, etc.) to run, not the regular launcher.
-Versions are important, 1.12.2 & 1.15.2 are not compatible, as well as Modloaders (Forge, Fabric, Liteloader, etc.)
-If you want mods from different versions to run, separate them with folders, 1.15.2 and 1.12.2 mods will crash if they conflict and expect Forge 1.12.2 or 1.15.2 to be able to work as changes happened between them. Sure you get 1.9.4 & 1.10.2 mods to work but it's not common.
To install Forge you'll want the Installer from their official website:
http://files.minecraftforge.net/
1.Get the Installer, download it/besides the ad site and then go to your downloads. http://files.minecraftforge.net/
2.Double click the Installer, make it client and it will do the rest once you hit install.
3.Go to your .minecraft folder (%appdata% in the Windows search bar makes it easy to find besides the regular launcher if you go to the profile and then the game directory browse button).
4.You can put mods into the mods folder, but put a 1.12.2 or 1.15.2 to separate them (1.12.2 and below it will make mods work no problem, 1.15.2 mods don't load in extra folders you have for separating so you have to move mods in and out of the mods folder to load them, 1.12.2 this is no problem).
If you want to make sure Forge installed properly check your launcher once you have closed it and relaunched it, if a Forge profile isn't there create one, same with the mods folder, create one if one didn't when Forge was installing.
There is many install videos, you just have to find the right trustworthy one out there as many as quick to say 'install 1.13.2' and it's installing 1.12.2 when the 1.13.2 one wasn't out yet or otherwise.
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
I did not install any 1.15 mods. I just opened 1.15 forge and it worked perfectly fine. Before it opened, it loaded for mods. What's in my mod files are pure 1.12.2 mods only. And I did try to make a new folder for RLCraft but again it's no use so I re-installed my minecraft and what I did is I put all the files from the RLCraft zip directly to the .minecraft folder of mine and still, no use,
I totally did everything except for the launcher thing. But I'll try to keep that in mind