Black screen nach start

[Lamu]

moin,

Der Lauscher funktioniert normal

Nach start kommt sofort der Black screen.

Dieser Code wird ausgegeben.

2015-01-12 12:30:17,486 ERROR Cannot access RandomAccessFile {}) java.io.FileNotFoundException: logs\latest.log (Das System kann auf die Datei nicht zugreifen) 2015-01-12 12:30:17,487 ERROR Unable to invoke method createAppender in class org.apache.logging.log4j.core.appender.RollingRandomAccessFileAppender for element RollingRandomAccessFile java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.apache.logging.log4j.core.config.BaseConfiguration.createPluginObject(BaseConfiguration.java:841) at org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:595) at org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:587) at org.apache.logging.log4j.core.config.BaseConfiguration.doConfigure(BaseConfiguration.java:244) at org.apache.logging.log4j.core.config.BaseConfiguration.start(BaseConfiguration.java:142) at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:339) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:378) at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:149) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:85) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:34) at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:387) at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:322) at bss.<clinit>(SourceFile:142) at net.minecraft.client.main.Main.main(SourceFile:41) Caused by: java.lang.IllegalStateException: Unable to create a manager at org.apache.logging.log4j.core.appender.AbstractManager.getManager(AbstractManager.java:73) at org.apache.logging.log4j.core.appender.OutputStreamManager.getManager(OutputStreamManager.java:65) at org.apache.logging.log4j.core.appender.rolling.RollingRandomAccessFileManager.getRollingRandomAccessFileManager(RollingRandomAccessFileManager.java:62) at org.apache.logging.log4j.core.appender.RollingRandomAccessFileAppender.createAppender(RollingRandomAccessFileAppender.java:196) ... 18 more 2015-01-12 12:30:17,490 ERROR Null object returned for RollingRandomAccessFile in Appenders 2015-01-12 12:30:17,517 ERROR Unable to locate appender File for logger [12:30:17] [Client thread/INFO]: Setting user: Chiska [12:30:17] [Client thread/INFO]: (Session ID is token:78c92f8868a7456caa96b5eca434596e:8c6fdcea32ed4eda968fb0bf267feeec) [12:30:19] [Client thread/INFO]: LWJGL Version: 2.9.1

Danke schon mal