Ugdhar

From the forge changelog: I would try downgrading your version of forge, as it appears it was built before these breaking changes were made. 1.15.1-30.0.15 would be my guess for the one this mod was built with, considering curseforge release date and forge update dates. The rendering stuff is going through a lot of changes in 1.15 from what I've read, so when encountering any kind of rendering errors, compare the mod release date and the release date of the version of forge you are using to see if there were any subsequent breaking changes. Good luck! =]

You should start your own thread and post logs, chances are your issue is not at all related to this one.

Where did you download your mods from? Some of your filenames suggest you downloaded from a bad website. I personally would only ever download mods from curseforge, or directly from the developers website. Sites that repost mods like 9 minecraft and such are bad, see https://stopmodreposts.org/ for more information. If you downloaded mods from any of the bad websites listed, I would delete them and redownload them from proper sources.

Make sure you have java installed, if so, likely jar files have become unassociated with it for some reason. There is an app on the web called jarfix that will correct this for you.

It would seem that immersive portals and chisels & bits 2 are both calling client classes, which will crash a dedicated server. Double check that there are not special instructions for server setup, and probably report to the mod authors.

So firstly, you have optifine for 1.8.9 trying to load in 1.12.2, which won't work, remove that old version, and get the one for 1.12.2 if you need it. (it almost looks like you have 2 copies of optifine in there with different filenames. Remove them all) It would also appear that you skyblockadditions mod is also for 1.8.9, remove/update that one. After these fixes, see what happens! Good luck, and Happy Holidays!

Better than nothing, if there's a debug.log that's probably even better.

Well one thing I noticed, you have iguanatweaks, and that is for MC 1.7, not 1.12.2.

Post logs as described in the EAQ, without further information it could be literally anything causing your issue.

Yes, that's the 32-bit version you have.

It is using the 32-bit java by default, otherwise it would say 64-bit when you run java -version. Either change your path, use the full path to the java executable, or uninstall 32-bit java.

Make sure you have 64 bit Java (java -version should say 64-bit)

Looks like an issue with tough as nails, I'd say contact the author, but it looks like this mod has been abandoned as of August and will not receive updates/support. Probably should just remove it. Sorry!

Also, please do not post logs as images, they are much harder to see, and cannot be searched through.

1.12.2 requires 8, but higher versions will work with 8-10

1.8.9 is no longer supported on this site due to how old it is. Update to a modern (1.12.2+) version to receive support.

It says that it cannot find the page when I use that pintrest link. Perhaps try using a github gist? https://gist.github.com/

Posting code as screenshots is probably the worst way to share. You should make a github repo with your codebase (with everything req to make it buildable) and post a link here. At the very least, copy/pasting your code into a code block (the <> at the top of the msg posting box) would still be easier to see than screenshots.

Do you have a debug.log or something? Unfortunately that crash report doesn't have any useful information in it.

Please post logs as described in the EAQ

1.7.10 is no longer supported on this site due to its age. If you are looking for help with 1.12.2, post logs as mentioned above. If you have 1.12.2 and 1.7.10 mods both in your mods folder, that would break things.

This thread is old, you should make your own thread if you are having a problem, as there is a good chance your problem is not exactly the same as this one (even though you may think it is). Also, the OP said it was the wrong version of the salt mod they had. I would imagine that they downloaded the correct version to fix the problem.

Unfortunately I am not sure which mod it is that's causing the issue, due to the mod author using such a short non-descriptive modid "rk" and/or "eu". The only thing I could think is to start fresh and add mods a couple at a time, testing after each addition to see that the game launches, or maybe start removing mods and doing the same thing. Sorry I can't be more help, maybe someone else will see this, and have some ideas what is making it crash.

I do not think those files have anything to do with this issue. Can you show me what files are in the logs folder in the minecraft game folder? Also perhaps a screenshot of your mods folder?

That's all I could find in the logs, I could not find more detail on what "Mod rk" is. Perhaps if there is a debug log, that would have more information?