This is what I get whenever I try and launch minecraft, I've tried re-downloading and i get the same thing. Any help is greatly appreciated.
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
Completely ignored arguments: [--nativeLauncherVersion, 302]
[16:05:48] [Client thread/INFO]: Setting user: _Chef_Carrott_
[16:05:48] [Client thread/INFO]: (Session ID is )
Exception in thread "Client thread" java.lang.NullPointerException
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:213)
at com.google.common.collect.Lists$ReverseList.(Lists.java:767)
at com.google.common.collect.Lists.reverse(Lists.java:759)
at lt.b(SourceFile:156)
at lt.(SourceFile:43)
at net.minecraft.server.MinecraftServer.(SourceFile:155)
at bpo.(SourceFile:41)
at ave.(SourceFile:293)
at net.minecraft.client.main.Main.main(SourceFile:124)here is a screenshot