Recompile error in 1.4.2

Hi all, so been waiting for 1.4.2 to come out before I updated my mod.

Got it all working fine, adjusted my code to fit the latest minecraft coding. But when I go to recompile I get this error:

== MCP 7.19 (data: 7.19, client: 1.4.2, server: 1.4.2) ==
# found ff, ff patches, srgs, name csvs, doc csvs, param csvs, renumber csv, ast
yle, astyle config
== Recompiling client ==
> Cleaning bin
> Recompiling
'"C:\Program Files\Java\jdk1.7.0_09\bin\javac" -encoding UTF-8 -Xlint:-options -
deprecation -g -sourc...' failed : 1

== ERRORS FOUND ==

src\minecraft\net\minecraft\src\RenderBlocks.java:6881: error: 'else' without 'i
f'
            else
            ^

1 error
==================

== Recompiling server ==
> Cleaning bin
> Recompiling
Server side recompiling skipped, this is normal
- Done in 0.00 seconds
Press any key to continue . . .

Not entirely sure what is wrong with the RenderBlocks file, because I have never ever made adjustments to it. So I can only assume Forge has changed it somehow.

But unless its fixed I can't recompile my code. And therefore no mod release

Any ideas whats wrong please?

EDIT: Fixed the problem.

For anyone else who may stumble across this, don't bother with ModLoader. Just use Forge.