launcher starts but only installjar

[Sarnos]

Launcher Version: latest

Operating System: windows 7 premium 32 bit

Java Version: jre-7u5-windows-i586-iftw

Antivirus Program: kaspersky

Description of Problem:

i started the laucher it installed only the in my techniclaucher file i tried to start the jar data but i only give error message

Error Messages:

exe cant be started

Error Log:

MissingFieldException[ Das folgende Pflichtfeld fehlt in der Startdatei: <jnlp>]

at com.sun.javaws.jnl.XMLFormat.parse(Unknown Source)

at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)

at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)

at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)

at com.sun.javaws.Main.launchApp(Unknown Source)

at com.sun.javaws.Main.continueInSecureThread(Unknown Source)

at com.sun.javaws.Main$1.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)