Client> Exception in thread "main" joptsimple.MissingRequiredOptionException: Missing required option(s) ['version']
Client>      at joptsimple.OptionParser.ensureRequiredOptions(OptionParser.java:447)
Client>      at joptsimple.OptionParser.parse(OptionParser.java:437)
Client>      at net.minecraft.client.main.Main.main(SourceFile:39)
Game ended with bad state (exit code 1)
Deleting C:\Users\Nick Ulmer\AppData\Roaming\.minecraft\versions\13w23b\13w23b-natives-605651517313668
Couldn't delete C:\Users\Nick Ulmer\AppData\Roaming\.minecraft\versions\13w23b\13w23b-natives-605651517313668 - scheduling for
deletion upon exit