when i try open a "forge-1.12.2-14.23.5.2838-installer.jar"
then "installer.log" appeared its contents are :
java.net.preferIPv4Stack=true
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:78)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at net.minecraftforge.installer.Java6Gate.main(Java6Gate.java:48)
Caused by: java.lang.ExceptionInInitializerError
at net.minecraftforge.installer.ClientInstall.getSponsorMessage(ClientInstall.java:401)
at net.minecraftforge.installer.InstallerAction.getSponsorMessage(InstallerAction.java:60)
at net.minecraftforge.installer.InstallerPanel.updateFilePath(InstallerPanel.java:334)
at net.minecraftforge.installer.InstallerPanel.<init>(InstallerPanel.java:315)
at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:167)
at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:54)
... 5 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1
at net.minecraftforge.installer.MirrorData.buildMirrorList(MirrorData.java:84)
at net.minecraftforge.installer.MirrorData.<init>(MirrorData.java:63)
at net.minecraftforge.installer.MirrorData.<clinit>(MirrorData.java:17)
... 11 more
i new in creating servers but i do one with forge before and it worked idk what to do
PS i have new version of java
thx for helping