[Solved] Error while installing Minecraft Forge Source 4.0.0.239

[eViLegion]

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:

  Quote

C:\T7-D510\JavaWorkspace\mcp72\forge>install.cmd

================ Forge ModLoader Setup Start ===================

Setting up MCP

> Backing up commands.py

Patching file C:\T7-D510\JavaWorkspace\mcp72\runtime\commands.py

patching file commands.py

Commands patch applied successfully

Copying FML conf

Fixing MCP Workspace

Traceback (most recent call last):

  File "install.py", line 40, in <module>

    main()

  File "install.py", line 18, in main

    setup_mcp(fml_dir, mcp_dir, True)

  File "C:\T7-D510\JavaWorkspace\mcp72\forge\fml\fml.py", line 608, in setup_mcp

 

    shutil.copytree(os.path.join(fml_dir, 'eclipse'), mcp_eclipse)

  File "shutil.pyc", line 174, in copytree

  File "os.pyc", line 157, in makedirs

WindowsError: [Error 5] Access is denied: 'C:\\T7-D510\\JavaWorkspace\\mcp72\\ec

lipse'

Press any key to continue . . .

 

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

[Toldea]

Build 200 is really old, try installing the latest build.

[eViLegion]

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

[eViLegion]

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?

[Toldea]

Try running updatemcp before installing forge.

[SanAndreaP]

WindowsError: [Error 5] Access is denied: 'C:\\T7-D510\\JavaWorkspace\\mcp72\\ec
lipse'

 

Looks like there are no writing rights for the eclipse folder. To solve this, right-click on your MCp folder -> Properties -> Remove the tick / filled square, so there's nothing in the checkbox -> Apply -> be sure that the 2nd checkbox is checked (apply changes for the folder, all subfolders and files) -> wait a bit until it's done -> click OK on the property window and try again.

[Iscamania]

Yay! My first post on this forum!

 

Anyway, I had this problem before. You could really easy resolve this with LockHunter! Just go to http://lockhunter.com/ and download it. Then after installing it, make a fresh installation of MCP and put the Forge source in it. When that's done, you go to the main folder where your mcp installation is, meaning that if I installed MCP in c:\mcp72\ for example, you'll have to go to c:\ in your explorer. Then right-click on your mcp folder. There will be an option there called "What is locking this folder?". Click that and a GUI will popup. In the GUI you'll click unlock and close the program. Forge should install correctly now.

 

It's a completely other solution than SanAndreasP gave here, but by far the best one. Why? Because it unlocks the folder from explorer.exe. The reason why you get this error, is because the folder is opened in the memory of explorer.exe. LockHunter simply unloads it. Don't worry, you can still go to the forge folder with explorer to click on install.cmd.

 

LockHunter is also a really nice utility for deleting/renaming files when they don't want to. Do exactly the same, and you'll be able to delete/rename what you want deleted/renaming. There are even options to do this directly in the program.

[LexManos]

Actually, typically this just means that he has eclipse open, he should close it.

[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!