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PackCENHeaderFix
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PackCENHeaderFix

by 4x · on Modrinth

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Minecraft version

⬇ Download for 26.1–26.1.1 · Fabric⬇ Download for 1.21.11 · Fabric⬇ Download for 1.21.3–1.21.10 · Fabric⬇ Download for 26.1–26.1.1 · NeoForge⬇ Download for 1.21.11 · NeoForge⬇ Download for 1.21.2–1.21.10 · NeoForge⬇ Download for 1.21.11 · Forge⬇ Download for 1.21.3–1.21.10 · Forge⬇ Download for 1.21.3–1.21.10 · Quilt
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

PackCENHeaderFix

There is no longer an error invalid CEN header (bad entry name or comment)

It solves this problem by replacing Java Zip implementation with Apache Commons Compress implementation.

Example Story

You downloaded a ResourcePack from a RP author. You put it in your RP folder and tried to load it as usual, but you don't see it in the RP selector.

Instead, Minecraft prints the following error in the log:

136fae32511da386f54de944925e101fee8c6527.png

It doesn't appear in Mojira, precisely because it's a bug that only appears under very extreme conditions. I haven't seen it in the past few years of the game, and only very, very few RP authors have accidentally allowed their RP to be contaminated by this bug.

The cause of this bug is unknown, but it only affects the Java Zip implementation. RPs that experience this bug can still be force-loaded (although you won't be able to find them in the selector), but I think it's better to try to fix it.

About API

It's intended for use with another mod of mine, which will rely on this one for additional functionality.

If you want to do something with it, my advice is don't, I don't want it to behave unexpectedly.

How to build?

After the clone repository, be sure to use the ./gradlew clean build command to build, rather than executing any of them separately.

After the build is completed, a jars folder will be generated in the root directory, where the final build results will be stored.

For Modpack

If you comply with the license, you can use it freely for Modpack.

Modpacks that redistribute Minecraft game body (i.e. packages that package the entire Minecraft game including Mod files, Config, ShaderPacks, ResourcePacks, Library and launcher into a whole zip file) are not allowed to use this mod.

License

This work has a restrictive license in addition to the original license to prevent some unexpected behavior, see 404Setup Public License

Quick facts

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

Verified by MCModsHub

These come from our own check of the pack file, not from the source page.

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