faith

ok I think I got It now thank you

thanks for the help but im still a little confused I want to use forge 1.12.2 because the mod I want is only up to date with that. I already have 1.15.2 and it works but that's not the problem I would like to use 1.12.2. so are you saying that we can't use the older ones from forge. sorry if this Is inconveniencing you but im just not getting it sorry

I get that you need us to update Minecraft to download 1.12 but how do we do that. I might just be a little confused or even just be misinterpreting what your saying but just to clarify you want us to update Minecraft but how do we do that I have even tried uninstalling and reinstalling Minecraft. any and all help will be appreciated

java.net.preferIPv4Stack=true Considering library net.minecraftforge:forge:1.12.2-14.23.5.2768: Not Downloading {Wrong Side} Considering library net.minecraft:launchwrapper:1.12: Not Downloading {Wrong Side} Considering library org.ow2.asm:asm-all:5.2 Considering library org.jline:jline:3.5.1: Not Downloading {Wrong Side} Considering library net.java.dev.jna:jna:4.4.0: Not Downloading {Wrong Side} Considering library com.typesafe.akka:akka-actor_2.11:2.3.3 Checking "/Users/faithstockdale/Library/Application Support/minecraft/libraries/com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar" internal checksums checksums.sha1 was not found, validation failed Downloading library com.typesafe.akka:akka-actor_2.11:2.3.3 Unpacking packed file akka-actor_2.11-2.3.3.jar.pack.xz Signed Checksum Length: 140942 Total Length: 2606968 Temp File: /var/folders/4q/p9ym6tdj40zgblyxg0_s2tcc0000gn/T/art17988270506965575990.pack Exception in thread "main" java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:564) at net.minecraftforge.installer.Java6Gate.main(Java6Gate.java:48) Caused by: java.lang.NoClassDefFoundError: java/util/jar/Pack200 at net.minecraftforge.installer.DownloadUtils.unpackLibrary(DownloadUtils.java:253) at net.minecraftforge.installer.DownloadUtils.downloadInstalledLibraries(DownloadUtils.java:89) at net.minecraftforge.installer.ClientInstall.run(ClientInstall.java:131) at net.minecraftforge.installer.InstallerAction.run(InstallerAction.java:43) at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:406) at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:168) at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:54) ... 5 more Caused by: java.lang.ClassNotFoundException: java.util.jar.Pack200 at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) ... 12 more

could I post mine I seem to be having a similar problem and need help I've been trying for about 2 hours