eViLegion

Many thanks for the responses... none of them was quite what I was looking for, but they gave me a bit of a clue where to start looking. So, I dug about in the python for a bit! Turns out, that in the setup_mcp() method in fml.py (called by install.py) it calls the line: shutil.copytree(os.path.join(fml_dir, 'eclipse'), mcp_eclipse) Now, shutil.copytree requires that the 2nd parameter is for a directory path which does not yet exist. So... all I needed to do was run the forge install after deleting the eclipse directory in mcp72! It worked like a charm! Lovely!

Hmmm.... I'm still getting exactly the same error with 4.0.0.239 (I assume this is the latest?) (Except, instead of fml.py failing on line 608, it fails on line 615 now... although its clearly the same actual line of code) Does anyone have any thoughts on this?

Oh is it? Cool - i'll give that a go, thanks!

OK... I might be being a bit stupid here, but I have tried everything I can think of. What I am doing: ---------------------- 1) I get a clean MCP 7.2 folder. 2) Into the mcp72\jars\ folder, I put clean minecraft bin & resource folders, and clean minecraft_server.jar, version 1.3.2. 3) I extract the latest forge source folder 4.0.0.200 into MCP. 4) I then run mcp72\forge\install.cmd. This is the readout I get from this: WindowsError: [Error 5] Access is denied: 'C:\\T7-D510\\JavaWorkspace\\mcp72\\eclipse' Now there is a very good reason why access is denied. This folder exists before I run the .cmd, but disappears afterwards. So, as far as I can tell, the install.cmd deletes it (or moves it), and then subsequently has a problem accessing it. Am I doing something wrong, or am I missing something important? Thanks in advance - Tom