It says
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$1.run<Unknown Source>
at java.security.AccessController.doPrivileged<Native Method>
at java.net.URLClassLoader.loadClass<Unknown Source>
at java.lang.ClassLoader.loadclass<Unknown Source>
at sun.misc.Launcher$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 cpw.mods.fml.relauncher.ServerLaunchWrapper.run<ServerLaunchWrapper.java:30>
at cpw.mods.fml.relauncher.ServerLaunchWrapper.main<ServerLaunchWrapper.java:17>
And also I'm not trying to run a server I'm trying to play Singleplayer.