I have a strange bug... My client is running Forge 1.7.10-10.13.0.1187 and I was connected to my Cauldron server (running same version of forge and... well.. whatever version of Craftbukkit it had in it) in creative mode, clicked the "next set of tabs" button, and my client (but not server) crashed. Now the Forge profile will not start (successfully loaded my non-forge profiles though)
Thoughts? Right now my only solution seems to be to delete the profile (and if needed the whole .minecraft directory) and reinstall forge...
In your .minecraft folder there should be a folder called logs, it should contain a number of text files labeld "fml-latest" etc, and those logs might contain some info on the cause. It may also say in the launcher log if you set it to stay open after a crash.
Derp... I check those every time my server crashes, why did I not think to check for client crash >.<
Did not help though, no idea what it means... here's the relevant part (where the "ERROR" starts):
[00:41:08] [main/ERROR] [LaunchWrapper/]: Unable to launch
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_65]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_65]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_65]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_65]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
Caused by: java.lang.NoClassDefFoundError: net/minecraft/entity/player/EntityPlayer
at net.minecraft.client.main.Main.main(SourceFile:72) ~[Main.class:?]
... 6 more
Caused by: java.lang.ClassNotFoundException: net.minecraft.entity.player.EntityPlayer
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:188) ~[launchwrapper-1.9.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_65]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_65]
at net.minecraft.client.main.Main.main(SourceFile:72) ~[Main.class:?]
... 6 more
Caused by: java.lang.ClassFormatError: Duplicate interface name in class file net/minecraft/entity/player/EntityPlayer
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.7.0_65]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.7.0_65]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.7.0_65]
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:180) ~[launchwrapper-1.9.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_65]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_65]
at net.minecraft.client.main.Main.main(SourceFile:72) ~[Main.class:?]
... 6 more
Thoughts? Right now my only solution seems to be to delete the profile (and if needed the whole .minecraft directory) and reinstall forge...
Did not help though, no idea what it means... here's the relevant part (where the "ERROR" starts):
[00:41:08] [main/ERROR] [LaunchWrapper/]: Unable to launch
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_65]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_65]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_65]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_65]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
Caused by: java.lang.NoClassDefFoundError: net/minecraft/entity/player/EntityPlayer
at net.minecraft.client.main.Main.main(SourceFile:72) ~[Main.class:?]
... 6 more
Caused by: java.lang.ClassNotFoundException: net.minecraft.entity.player.EntityPlayer
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:188) ~[launchwrapper-1.9.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_65]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_65]
at net.minecraft.client.main.Main.main(SourceFile:72) ~[Main.class:?]
... 6 more
Caused by: java.lang.ClassFormatError: Duplicate interface name in class file net/minecraft/entity/player/EntityPlayer
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.7.0_65]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.7.0_65]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.7.0_65]
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:180) ~[launchwrapper-1.9.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_65]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_65]
at net.minecraft.client.main.Main.main(SourceFile:72) ~[Main.class:?]
... 6 more