Bookwyrm77

That finally worked, thanks gang!

Changed it, same problem. Microsoft Windows [Version 10.0.16299.309] (c) 2017 Microsoft Corporation. All rights reserved. C:\Users\MyName>cd.. C:\Users>\MyName\Downloads> java -Djava.net.preferIPv4Stack=true -jar forge-1.12.2-14.23.1.2555-installer.jar Access is denied.

In Powershell; PS C:\Users\MyName\Downloads> java -Djava.net.preferIPv4Stack=true -jar forge-1.12.2-14.23.1.2555-installer.jar Error: Could not find or load main class .net.preferIPv4Stack=true PS C:\Users\MyName\Downloads> In cmd Prompt; Microsoft Windows [Version 10.0.16299.309] (c) 2017 Microsoft Corporation. All rights reserved. C:\Users\MyName>java -Djava.net.preferIPv4Stack=true -jar forge-1.12.2-14.23.1.2555-installer.jar Error: Unable to access jarfile forge-1.12.2-14.23.1.2555-installer.jar C:\Users\MyName>

I'm trying to install forge-1.12.2-14.23.1.2555 from a fresh .minecraft file, but I get the following error message no matter what I do. I've tried reinstalling multiple times, but no luck. I get this error message; Error Downloading: These libraries failed to download. Try again. org.ow2.asm-all:5.2 com.typesafe.akka-actor_2.11:2.3.3 com.typesafe:config:1.2.1 org.scala-lang:scala-actors-migration_2.11:1.1.0 org.scala-lang:scala-compiler:2.11.1 org.scala-lang.plugins:scala-continuations-library_2.11:1.0.2 org.scala-lang:plugins:scala-continuations-plugin_2.11.1:1.0.2 org.scala-lang:scala-library:2.11.1 org.scala-lang:scala-parser-combinators_2.11:1.0.1 org.scala-lang:scala-reflect:2.11.1 org.scala-lang:scala-swing_2.11:1.0.1 org.scala-lang:scala-xml_2.11:1.0.2 net.minecraftforge:MercuriusUpdater:1.12.2 I tried the advice given in this thread (http://www.minecraftforge.net/forum/topic/52285-forge-installation-issues/?tab=comments#comment-255402) but I just get this message when I follow the instructions; Error: Could not find or load main class .net.preferIPv4Stack=true I'm at the end of my rope, can't get anything to work to save my life. Any help would be greatly appreciated.