luziferjones 0 Report post Posted December 6 Hey, I couldn't install Forge with the windows installer, so I asked google about it. I found a solution that helped most of the people: http://www.minecraftforge.net/forum/topic/52285-forge-installation-issues/?do=findComment&comment=255402 If I open up the command prompt and type the command in i get the error message: Mainclass .net.preferIPv4Stack=true could not be found or loaded. Can anyone tell me how to fix this? PS: I renamed the installer to forge.jar, just so u dont wonder. Share this post Link to post Share on other sites
diesieben07 6040 Report post Posted December 6 When using PowerShell complex arguments must be quoted: java "-Djava.net.preferIPv4Stack=true" -jar .\forge-1.12.2-14.23.5.2795-installer.jar 1 Share this post Link to post Share on other sites
luziferjones 0 Report post Posted December 6 Thanks for the quick response. Now I have another error I guess, as seen in the picture. Do you know what to do? Sorry for beeing that clueless^^ Share this post Link to post Share on other sites
Cadiboo 108 Report post Posted December 6 Please post the full output, your screenshot is missing the class that wasn't found 1 Share this post Link to post Share on other sites
luziferjones 0 Report post Posted December 6 Here it is. Share this post Link to post Share on other sites
diesieben07 6040 Report post Posted December 6 That is not the Forge installer. That is the universal jar. Download the Installer from here: http://files.minecraftforge.net/. 1 Share this post Link to post Share on other sites
luziferjones 0 Report post Posted December 6 Ahh god dammit, I seem to have missclicked at the downloadsection. My bad, sorry...^^ Thanks for your answers. Share this post Link to post Share on other sites
