Posted May 14, 20187 yr -Windows 10- Hey, I have this problem when installing forge 1.8.9: https://imgur.com/a/zs96CWb However, when i go into the files, the jar files are there and I have even reinstalled them multiple times... Please help. Thanks, -Ben
May 16, 20187 yr Make sure the computer is connected to the internet and Java is allowed to through your firewall. Please download the .jar version of the installer (not the Installer-Win variant). Open the folder containing the downloaded file in Windows Explorer. Hold down shift and right-click an empty space, then select "Open command window here". In the new window type java -Djava.net.preferIPv4Stack=true -jar [name of the installer], replacing [name of the installer] with the complete file name of the installer, including the .jar file extension. Then hit enter.
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