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Talonos

Pack works fine on PC, crashes on Mac with ModsNotFound error.

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...despite the mod it claims it cannot find being present in the mods folder.

 

My pack is located here: http://www.technicpack.net/modpack/blightfall.592618/about

 

This pack has been verified as working multiple times on three different computers. The only time it crashes is when it is used on a mac. It gives the following mysterious error: 

 

http://i.imgur.com/RsOt7WT.png 

 

Please note the presence of CoFH Core in the mods directory.

 

After that, latest.log contains the following:

 

http://pastebin.com/TuUqn8GJ

 

It seems to be a problem afflicting other modpacks, specifically on macs. Google searches reveal two other places where the same issue is reported, both here: http://bitly.com/1DyFcDX and here: http://forums.tekkify.com/threads/1-7-10-mac-issues.4895/

 

I notice in the above log that there are lots of complaints about being unable to open zipfiles, and notably it complains about all the CoFH mods, including thermal foundation, nether ores, and Minefactory Reloaded. What do you make of that? Perhaps macs handle zipping and unzipping files differently, and the CoFH team uses a compression algorithm not recognized by the mac implementation of the JVM?

Edited by Talonos

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[12:08:09] [main/INFO]: [codechicken.core.launch.DepLoader$DepLoadInst:scanDepInfo:510]: Failed to load dependencies.info from CoFHCore-[1.7.10]3.0.0B9-40 (1).jar as JSON
[12:08:09] [main/INFO]: [java.lang.Throwable:printStackTrace:461]: java.util.zip.ZipException: error in opening zip file
  • The mod should not have " (1)" in the file name. I've seen this cause issues before. Remove that. As far as the ZIP libraries differeing, hard to say. Might have to ask one of the admins in the IRC channel.
  • The CoFHLib file is only for use by mod developers and should never be used in a modpack.
  • Your ThaumCraft is out of date (specifically does not match your version of Thaumic Tinkerer).
  • Your Waila version is out of date with known crashes/bugs.

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Man, you're good. Thanks for the (mostly off-topic but still very welcome) feedback!

 

Do you have a program that you run modpacks through to find issues like the Thaumcraft/TT version mismatch, or just an encyclopedic knowledge of all sorts of different mod versions?

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Heh, I don't know if I'd say encyclopedic, but the changelog in the Jenkins server for TT does indicate when significant version changes happen ( http://jenkins.nekokittygames.com:8080/job/Thaumic%20Tinkerer/ ). I don't really have a program I use, but I do have a process which I recently published in the hopes that others might gain something from it: '?do=embed' frameborder='0' data-embedContent>>

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Okay, I got it to work. If anybody else has this problem, please direct them to here.

 

Take all CoFH mods, including Minefactory reloaded, nether ores, etc, and do the following:

 

1: Rename it from a .jar file to a .zip file.

2: Right click it and say "Extract here".

3: Select all the files that were extracted, right click one of them, and select "Send to compressed (zipped) folder"

4: Rename this new zipped file to be the same as your old jar file, including the .jar extension.

 

Why this works:

 

As you probably already know, a jar file is just a renamed zip file. The issue is, not all zip files are the same. There are many different ways to compress folders, and "zip" files might be different internally even though they share the same extension. Windows knows how to handle some types of zip files that Mac doesn't, apparently. Also apparently, the zip file format the CoFH uses for its mods is recognized by Windows, but not by Mac. By unzipping the jar files and rezipping them, you create a new zip file that uses a more "standardized" zip archive format that macs are capable of handling. The contents of the zip files are the same, there's just a difference in how they are compressed. Distribute those rezipped mods, and you will not have any problems with mac compatibility.

 

At least, that's been my experience. Could somebody else who has run into this issue verify it?

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