Scala error

[TechGuard]

Hello,

 

I'm having some trouble using forge with mcp.

It happens when I run the install.cmd

I keep getting this weird scala error. Could anyone help me?

The error log is below:

 

[spoiler=Error Log]

== MCP 7.44 (data: 7.44, client: 1.5.1, server: 1.5.1) ==
"scala" does not support jvm-1.6 target, it is out of date. Ignoring
FATAL ERROR
Traceback (most recent call last):
  File "C:\Users\Robin\Desktop\Maps\Java Development\Minecraft Mods\MahDoodle\ru
ntime\decompile.py", line 50, in decompile
    commands = Commands(conffile, verify=True, no_patch=no_patch)
  File "C:\Users\Robin\Desktop\Maps\Java Development\Minecraft Mods\MahDoodle\ru
ntime\commands.py", line 202, in __init__
    self.readcommands(verify, no_patch=no_patch)
  File "C:\Users\Robin\Desktop\Maps\Java Development\Minecraft Mods\MahDoodle\ru
ntime\commands.py", line 291, in readcommands
    error=False)
  File "C:\Users\Robin\Desktop\Maps\Java Development\Minecraft Mods\MahDoodle\ru
ntime\commands.py", line 211, in checkcommand
    output = output.splitlines()[0]
IndexError: list index out of range
Decompile Exception: 1