minecraft crashes at startup without crash report

DALCOTS99 · January 10, 2018

whenever i go to play minecraft 1.7.10 (modded) i click play,the launcher disappears for a few seconds then it comes back.

no crash reports or anything,only a game output tab please find me a solution.

the command output:

[10:30:18] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[10:30:18] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[10:30:18] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[10:30:18] [main/INFO] [FML]: Forge Mod Loader version 7.99.36.1558 for Minecraft 1.7.10 loading
[10:30:18] [main/INFO] [FML]: Java is Java HotSpot(TM) Client VM, version 1.8.0_121, running on Windows 7:x86:6.1, installed at C:\Program Files (x86)\Java\jre1.8.0_121
[10:30:18] [main/WARN] [FML]: The coremod codechicken.core.launch.CodeChickenCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: java.lang.NoClassDefFoundError: net/minecraftforge/fml/relauncher/IFMLLoadingPlugin
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.defineClass1(Native Method)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.defineClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.security.SecureClassLoader.defineClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.net.URLClassLoader.defineClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.net.URLClassLoader.access$100(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.net.URLClassLoader$1.run(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.net.URLClassLoader$1.run(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.security.AccessController.doPrivileged(Native Method)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.net.URLClassLoader.findClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.Class.forName0(Native Method)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.Class.forName(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:460)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:389)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: Caused by: java.lang.ClassNotFoundException: net.minecraftforge.fml.relauncher.IFMLLoadingPlugin
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    ... 23 more
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: Caused by: java.lang.NullPointerException
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    ... 25 more
[10:30:19] [main/ERROR] [FML]: An error occurred trying to configure the minecraft home at C:\Users\user\AppData\Roaming\.minecraft for Forge Mod Loader
java.lang.NoClassDefFoundError: net/minecraftforge/fml/relauncher/IFMLLoadingPlugin
   at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_121]
   at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_121]
   at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_121]
   at java.net.URLClassLoader.defineClass(Unknown Source) ~[?:1.8.0_121]
   at java.net.URLClassLoader.access$100(Unknown Source) ~[?:1.8.0_121]
   at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_121]
   at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_121]
   at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_121]
   at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_121]
   at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
   at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_121]
   at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_121]
   at java.lang.Class.forName0(Native Method) ~[?:1.8.0_121]
   at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_121]
   at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:460) ~[forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
   at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:389) ~[forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
   at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221) ~[forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
   at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) [forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
   at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67) [forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
   at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
   at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126) [forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
   at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
   at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
Caused by: java.lang.ClassNotFoundException: net.minecraftforge.fml.relauncher.IFMLLoadingPlugin
   at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
   at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_121]
   at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_121]
   ... 23 more
Caused by: java.lang.NullPointerException
   at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?]
   at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_121]
   at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_121]
   ... 23 more
Exception in thread "main" [10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: java.lang.NoClassDefFoundError: net/minecraftforge/fml/relauncher/IFMLLoadingPlugin
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.defineClass1(Native Method)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.defineClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.security.SecureClassLoader.defineClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.net.URLClassLoader.defineClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.net.URLClassLoader.access$100(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.net.URLClassLoader$1.run(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.net.URLClassLoader$1.run(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.security.AccessController.doPrivileged(Native Method)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.net.URLClassLoader.findClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.Class.forName0(Native Method)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.Class.forName(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:460)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:389)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: Caused by: java.lang.ClassNotFoundException: net.minecraftforge.fml.relauncher.IFMLLoadingPlugin
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    ... 23 more
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: Caused by: java.lang.NullPointerException
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
[10:30:19] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:    ... 25 more

Spoiler

vova7865 · January 11, 2018

Write the list of your mods, some of them may not be compatible.

larsgerrits · January 11, 2018

1.7.10 is no longer supported on this forum. Please update if you want support.

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minecraft crashes at startup without crash report

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