Startup Log:
 

D:\Servers\Minecraft\Servers\New\1_14_2-Forge>java -Xmx1024M -Xms1024M -jar forge-1.14.2-26.0.5.jar nogui
2019-06-08 12:28:17,308 main WARN Disabling terminal, you're running in an unsupported environment.
[12:28:17.418] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--gameDir, ., --launchTarget, fmlserver, --fml.forgeVersion, 26.0.5, --fml.mcpVersion, 20190603.175704, --fml.mcVersion, 1.14.2, --fml.for
geGroup, net.minecraftforge, nogui]
[12:28:17.422] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher starting: java version 1.8.0_211
[12:28:17.658] [main/INFO] [ne.mi.fm.lo.FixSSL/CORE]: Added Lets Encrypt root certificates as additional trust
[12:28:18.089] [main/INFO] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Launching target 'fmlserver' with arguments [--gameDir, ., nogui]
[12:28:18.759] [main/FATAL] [minecraft/MinecraftServer]: Failed to start the minecraft server
joptsimple.UnrecognizedOptionException: gameDir is not a recognized option

Additional infos:
No mods installed,

vanilla server launches without issues,

same error(s) with "java -jar forge-1.14.2-26.0.5.jar nogui",

does also not attempt to launch a GUI without the "nogui" argument
OS: Win 8.1
 

 

Would be very helpful to find out what causes this and how to fix/circumvent this, thank you!

Edited June 8, 20196 yr by Krzd

Same with all versions, forge 26 are in beta state, maybe don't work for server actually, waiting for official reply