Côté serveur il me semble que l'installation de mcpc 1.7.2 c'est bien passé, mais arrivé au niveau du client, l'installation c'était apparrement bien passé jusqu'au lancement de celui-ci, qui après avoir cliqué sur "play" me renvoie au launcher après un léger chargement.
Au niveau de la console client, j'ai ceci qui m'intrigue et que je n'arrive pas à comprendre.
Half command: C:\Program Files (x86)\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerfor
mance_javaw.exe_minecraft.exe.heapdump
-Xmx512M -Djava.library.path=C:\Users\Kenji\AppData\Roaming
\.minecraft\versions\1.7.2-Forge10.12.0.1024\1.7.2
-Forge10.12.0.1024-natives-18978168046628
-cp C:\Users\Kenji\AppData\Roaming\.minecraft\librarie
s\net\minecraftforge\forge\1.7.2-10.12.0.1024\forg
e-1.7.2-10.12.0.1024.jar;C:\Users\Kenji\AppData\Ro
aming\.minecraft\libraries\net\minecraft\launchwra
pper\1.9\launchwrapper-1.9.jar;C:\Users\Kenji\AppD
ata\Roaming\.minecraft\libraries\org\ow2\asm\asm-a
ll\4.1\asm-all-4.1.jar;C:\Users\Kenji\AppData\Roam
ing\.minecraft\libraries\org\scala-lang\scala-libr
ary\2.10.2\scala-library-2.10.2.jar;C:\Users\Kenji
\AppData\Roaming\.minecraft\libraries\org\scala-la
ng\scala-compiler\2.10.2\scala-compiler-2.10.2.jar
;C:\Users\Kenji\AppData\Roaming\.minecraft\librari
es\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users
\Kenji\AppData\Roaming\.minecraft\libraries\net\sf
\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\
Kenji\AppData\Roaming\.minecraft\libraries\com\ibm
\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2
.jar;C:\Users\Kenji\AppData\Roaming\.minecraft\lib
raries\net\sf\jopt-simple\jopt-simple\4.5\jopt-sim
ple-4.5.jar;C:\Users\Kenji\AppData\Roaming\.minecr
aft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Us
ers\Kenji\AppData\Roaming\.minecraft\libraries\com
\paulscode\codecjorbis\20101023\codecjorbis-201010
23.jar;C:\Users\Kenji\AppData\Roaming\.minecraft\l
ibraries\com\paulscode\codecwav\20101023\codecwav-
20101023.jar;C:\Users\Kenji\AppData\Roaming\.minec
raft\libraries\com\paulscode\libraryjavasound\2010
1123\libraryjavasound-20101123.jar;C:\Users\Kenji\
AppData\Roaming\.minecraft\libraries\com\paulscode
\librarylwjglopenal\20100824\librarylwjglopenal-20
100824.jar;C:\Users\Kenji\AppData\Roaming\.minecra
ft\libraries\com\paulscode\soundsystem\20120107\so
undsystem-20120107.jar;C:\Users\Kenji\AppData\Roam
ing\.minecraft\libraries\io\netty\netty-all\4.0.10
.Final\netty-all-4.0.10.Final.jar;C:\Users\Kenji\A
ppData\Roaming\.minecraft\libraries\com\google\gua
va\guava\15.0\guava-15.0.jar;C:\Users\Kenji\AppDat
a\Roaming\.minecraft\libraries\org\apache\commons\
commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\K
enji\AppData\Roaming\.minecraft\libraries\commons-
io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Kenj
i\AppData\Roaming\.minecraft\libraries\net\java\ji
nput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Kenji\
AppData\Roaming\.minecraft\libraries\net\java\juti
ls\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Kenji\Ap
pData\Roaming\.minecraft\libraries\com\google\code
\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Kenji\App
Data\Roaming\.minecraft\libraries\com\mojang\authl
ib\1.3\authlib-1.3.jar;C:\Users\Kenji\AppData\Roam
ing\.minecraft\libraries\org\apache\logging\log4j\
log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Use
rs\Kenji\AppData\Roaming\.minecraft\libraries\org\
apache\logging\log4j\log4j-core\2.0-beta9\log4j-co
re-2.0-beta9.jar;C:\Users\Kenji\AppData\Roaming\.m
inecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwj
gl-2.9.0.jar;C:\Users\Kenji\AppData\Roaming\.minec
raft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lw
jgl_util-2.9.0.jar;C:\Users\Kenji\AppData\Roaming\
.minecraft\versions\1.7.2-Forge10.12.0.1024\1.7.2-
Forge10.12.0.1024.jar
net.minecraft.launchwrapper.Launch
[17:14:12 INFO]: Client> [17:14:12] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[17:14:12 INFO]: Client> [17:14:12] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[17:14:12 INFO]: Client> [17:14:12] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[17:14:12 INFO]: Client> [17:14:12] [main/INFO] [FML]: Forge Mod Loader version 7.2.116.1024 for Minecraft 1.7.2 loading
[17:14:12 INFO]: Client> [17:14:12] [main/INFO] [FML]: Java is Java HotSpot(TM) Client VM, version 1.7.0_21, running on Windows 7:x86:6.1, installed at C:\Program Files (x86)\Java\jre7
[17:14:12 INFO]: Client> [17:14:12] [main/WARN] [FML]: The coremod shadersmodcore.loading.SMCFMLLoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[17:14:12 INFO]: Client> java.lang.AbstractMethodError
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod
(CoreModManager.java:425)
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.CoreModManager.discoverCor
eMods(CoreModManager.java:312)
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.CoreModManager.handleLaunc
h(CoreModManager.java:214)
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome
(FMLLaunchHandler.java:90)
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClie
nt(FMLLaunchHandler.java:67)
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.FMLLaunchHandler.configure
ForClientLaunch(FMLLaunchHandler.java:34)
[17:14:12 INFO]: Client> at cpw.mods.fml.common.launcher.FMLTweaker.injectInto
ClassLoader(FMLTweaker.java:112)
[17:14:12 INFO]: Client> at net.minecraft.launchwrapper.Launch.launch(Launch.j
ava:114)
[17:14:12 INFO]: Client> at net.minecraft.launchwrapper.Launch.main(Launch.jav
a:28)
[17:14:12 INFO]: Client> [17:14:12] [main/ERROR] [FML]: An error occurred trying to configure the minecraft home at C:\Users\Kenji\AppData\Roaming\.minecraft for Forge Mod Loader
[17:14:12 INFO]: Client> java.lang.AbstractMethodError
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod
(CoreModManager.java:425)
~[forge-1.7.2-10.12.0.1024.jar:?]
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.CoreModManager.discoverCor
eMods(CoreModManager.java:312)
~[forge-1.7.2-10.12.0.1024.jar:?]
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.CoreModManager.handleLaunc
h(CoreModManager.java:214)
~[forge-1.7.2-10.12.0.1024.jar:?]
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome
(FMLLaunchHandler.java:90)
[forge-1.7.2-10.12.0.1024.jar:?]
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClie
nt(FMLLaunchHandler.java:67)
[forge-1.7.2-10.12.0.1024.jar:?]
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.FMLLaunchHandler.configure
ForClientLaunch(FMLLaunchHandler.java:34)
[forge-1.7.2-10.12.0.1024.jar:?]
[17:14:12 INFO]: Client> at cpw.mods.fml.common.launcher.FMLTweaker.injectInto
ClassLoader(FMLTweaker.java:112)
[forge-1.7.2-10.12.0.1024.jar:?]
[17:14:12 INFO]: Client> at net.minecraft.launchwrapper.Launch.launch(Launch.j
ava:114)
[launchwrapper-1.9.jar:?]
[17:14:12 INFO]: Client> at net.minecraft.launchwrapper.Launch.main(Launch.jav
a:28)
[launchwrapper-1.9.jar:?]
[17:14:12 INFO]: Client> Exception in thread "main" java.lang.AbstractMethodError
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod
(CoreModManager.java:425)
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.CoreModManager.discoverCor
eMods(CoreModManager.java:312)
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.CoreModManager.handleLaunc
h(CoreModManager.java:214)
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome
(FMLLaunchHandler.java:90)
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClie
nt(FMLLaunchHandler.java:67)
[17:14:12 INFO]: Client> at cpw.mods.fml.relauncher.FMLLaunchHandler.configure
ForClientLaunch(FMLLaunchHandler.java:34)
[17:14:12 INFO]: Client> at cpw.mods.fml.common.launcher.FMLTweaker.injectInto
ClassLoader(FMLTweaker.java:112)
[17:14:12 INFO]: Client> at net.minecraft.launchwrapper.Launch.launch(Launch.j
ava:114)
[17:14:12 INFO]: Client> at net.minecraft.launchwrapper.Launch.main(Launch.jav
a:28)
[17:14:12 ERROR]: Game ended with bad state (exit code 1)
[17:14:12 INFO]: Deleting C:\Users\Kenji\AppData\Roaming\.minecraft\versions
\1.7.2-Forge10.12.0.1024\1.7.2-Forge10.12.0.1024-n
atives-18978168046628
[17:14:12 INFO]: Ignoring visibility rule and showing launcher due to a game crash
Voili Voilou, merci x)