The assetDir is deprecated!  I actually just did all this generalizing stuff just now.. Use runDir instead! runDir set to eclipse/assets/..
The runDir should be the location where you want MC to be run, usually he parent of the asset dir
****************************
 Powered By MCP:
 http://mcp.ocean-labs.de/
 Searge, ProfMobius, Fesh0r,
 R4wk, ZeuX, IngisKahn, bspkrs
 MCP Data version : unknown
****************************
:compileApiJava UP-TO-DATE
:processApiResources UP-TO-DATE
:apiClasses UP-TO-DATE
:sourceMainJava UP-TO-DATE
:compileJava
warning: [options] bootstrap class path not set in conjunction with -source 1.6
/home/mgooch/mod_repos/Another-One-Bites-the-Dust/build/sources/java/ganymedes01/aobd/recipes/modules/Mekanism7.java:63: error: method addChemicalInjectionChamberRecipe in class RecipeHandler cannot be applied to given types;
			RecipeHandler.addChemicalInjectionChamberRecipe(new AdvancedInput(stack, hydrogenChloride), getOreStack("shard", ore, 4));
			             ^
  required: ItemStack,String,ItemStack
  found: AdvancedInput,ItemStack
  reason: actual and formal argument lists differ in length
/home/mgooch/mod_repos/Another-One-Bites-the-Dust/build/sources/java/ganymedes01/aobd/recipes/modules/Mekanism7.java:64: error: method addChemicalInjectionChamberRecipe in class RecipeHandler cannot be applied to given types;
		RecipeHandler.addChemicalInjectionChamberRecipe(new AdvancedInput(getOreStack("crystal", ore), hydrogenChloride), getOreStack("shard", ore));
		             ^
  required: ItemStack,String,ItemStack
  found: AdvancedInput,ItemStack
  reason: actual and formal argument lists differ in length
2 errors
1 warning
:compileJava FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 9.892 secs