Solved Direwolf20 1.10 Server Libraries Missing

[Theotargon]

I downloaded the server files for Direwolf20 1.10, editted the eula to TRUE, ran "FTBInstall.bat" and then tried to launch with "ServerStart.bat" but it gives the following error

Starting server
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option PermSize=256M; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: Using the ParNew young collector with the Serial old collector is deprecated and will likely be removed in a future release
We appear to be missing one or more essential library files.
You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:44)
at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:31)
Exiting...
Press any key to continue . . .

Does anyone have any suggestions, I've tried downloading from several sources and reinstalling multiple times with no change at all.

 

[phit]

ftb's install script on windows is broken and failing to download the launchwrapper, quickest fix is grabbing this file
https://libraries.minecraft.net/net/minecraft/launchwrapper/1.12/launchwrapper-1.12.jar

and put into this folder libraries/net/minecraft/launchwrapper/1.12/

 

[Theotargon]

Hi,

I actually found a fix for this in my case. It seems Java was preventing the libraries from installing correctly.

I opened Task Manager and closed all running instances of Java Platform SE Binary and then reinstalled the server, this time it installed all the libraries fine.