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OptiFine not a valid mod file

Cecil743

By Cecil743
in Modder Support

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Cecil743 Tree Puncher

Cecil743

Posted
Posted

Today, I tried downloading the latest OptiFine file for 1.15.2 and tried getting it to run with Forge. However, I constantly ran into the error "_ is not a valid mod file". I downloaded Forge 31.2.20 through 31.2.24 and none of those versions could load OptiFine. On OptiFine's twitter, it said OptiFine pre30 was compatible with Forge 31.2.21, so I am confused as to why it is not working. I am not very tech savvy and have no idea how to fix this. Any help is appreciated.

mod folder.png

latest log.png

not valid mod file.png

Draco18s Reality Controller

Draco18s

Posted
Posted

Optifine and Forge are not compatible with each other.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

Cecil743 Tree Puncher

Cecil743

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  • Author
Posted

Never mind, I got it to work. They are compatible. I just needed to extract OptiFine to the mods folder instead of copy the "installed" .jar file.

  • 10 months later...
DaemonUmbra Reality Controller

DaemonUmbra

Posted
Posted

This should not be necessary on modern versions, if you have an issue please make your own thread.

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

  Reveal hidden contents

 

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