Project Will No Longer Launch From Eclipse

[-MCS_Gaming-]

So my project has been working fine up until about an hour ago. I don't quite know what I've done, however, here's what I get from the console:

Spoiler

2018-08-12 21:29:39 [SEVERE] [ForgeModLoader] Unable to launch
java.lang.RuntimeException: java.lang.ClassNotFoundException: cpw.mods.fml.common.asm.FMLSanityChecker
    at cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:128)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:111)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.common.asm.FMLSanityChecker
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:117)
    ... 2 more
Caused by: java.lang.IllegalArgumentException
    at org.objectweb.asm.ClassReader.<init>(ClassReader.java:170)
    at org.objectweb.asm.ClassReader.<init>(ClassReader.java:153)
    at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:41)
    at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:274)
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:172)
    ... 7 more
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
 

I understand that it says that FMLSanityChecker is not found, however, I've checked and it's in the exact location it says its not.

 

EDIT: I've tried changing my java version up to 10.0.2. Upon doing this I get an error box while trying to launch that says, Error: Could not create the Java Virtual Machine.

And within the console I get:  Unrecognized option: -Xincgc

Edited August 12, 2018 by -MCS_Gaming-