Minecraft Error Code -1 With Windows 10

Hello, Minecraft recently stopped wanting to launch after upgrading to windows 10. The launcher tells me Minecraft stopped with stop code -1.

Failed to find Minecraft main class:
java.lang.ClassNotFoundException: net.minecraft.client.main.Main
    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 org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:239)
    at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:394)
    at org.multimc.EntryPoint.listen(EntryPoint.java:170)
    at org.multimc.EntryPoint.main(EntryPoint.java:54)
Exiting with -1
Process exited with code -1.