Yesterday I deleted my .minecraft (something I've done 7 times previously and have had no previous issue reinstalling forge) to clear up my logs/screenshots and any other useless files I've collected along the way. I redownloaded 1.12.2, waited for it to download and launch, closed minecraft and clicked on my forge installer to install it. Every time it starts installing but gets stuck on "unpacking packed file scala-compiler-2.11.1 jar.pack.xz" every time, no matter what.

I've tried using different versions of forge, different versions of minecraft (all the way down to 1.8.9), I've tried using the "java -Xmx1g -jar " command, I've tried using the "java -Djava.net.preferIPv4Stack=true -jar" command, I've uninstalled and reinstalled minecraft twice, deleted all forge variants from my computer, I've tried uninstalling and reinstalling java twice, I've restarted my computer numerous times, turned off my firewall/antivirus, gone through and allowed every java variant through the firewall.

Here are the logs from just running the installer normally, https://pastebin.com/hzKyGk9a
Here are the logs from using the  "java -Xmx1g -jar " command, https://pastebin.com/03JtxW1M

Here are the logs from using the "java -Djava.net.preferIPv4Stack=true -jar" command, https://pastebin.com/fevsWktf

Edited May 1, 20187 yr by Vaxd

Well it wasn't, it got stuck at "unpacking packed file scala-compiler-2.11.1 jar.pack.xz" no matter what I tried, it would create a folder in the versions with nothing inside and wouldn't show up in the versions section of the launcher.

You can always download and put the scala library in manually: https://repo1.maven.org/maven2/org/scala-lang/scala-compiler/2.11.1/

Not sure why you're having issues, there is usually more then just stalling. 

Manually downloading it made it download farther but it still got stuck at "unpacking packed file scala-compiler-2.11.1 jar.pack.xz". I fixed the issue by going into my previous .minecraft and pasting over all of the scala logs.

I have a similar problem

This thread is almost 2 years old, you should make a new thread for your issue.

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