Ugdhar

Did you run the installer? Once it's been run, it should add the version to your dropdown, it is not installed in the mods folder like a mod, it's a little different. If you don't see it in the dropdown after you've run it, try scrolling all the way to the bottom.

Sorry, but you'll have to update to a newer version to receive support. 1.7.10 is really old, and no longer supported on these forums.

You should post the full log, partial logs only show part of the story. Post them to a pastbin or github or something like that for readability. =]

You will need to update to a newer version to receive support. 1.7.10 is super old, and no longer supported on these forums.

Hello! Playing with mods will only be possible if you have the Java version of Minecraft. If you have the Windows 10 version, mods are not compatible. If you DO have the Java version, then I would suggest getting the twitch launcher, found at https://app.twitch.tv/download This will prevent you from downloading mods from Bad Sites that contain broken/outdated/virused mods, and put everything in a nice package for you. After installing the launcher, just run it, and click where it says "Mods" near the top, then select Minecraft. From here, you will be able to browse packs made by other people, or create your own modpack by choosing the mods you want. Keep in mind when adding a bunch of mods, this can make the game run slower, and/or mixing mods sometimes they do not "play well" together. If you want a lot of mods, try adding a couple at a time, and trying the game to make sure it doesn't crash and is still playable. If you add a mod that breaks it, just go back and remove it. I am not sure what you mean by "I want to change my person", but I would guess that it means you would like a new "skin" for your player. There are instructions on changing your skin in the Java edition here: https://help.mojang.com/customer/en/portal/articles/979200-minecraft-skins?b_id=5408 Instructions for changing your skin on the Windows 10 edition here: https://support.xbox.com/en-US/games/game-titles/custom-skins-minecraft-windows-10-edition Hope this helps! Good luck, and most of all have fun!

Where did you get them from? If it wasn't curseforge, they are probably out of date/broken/malwared.

Try disabling the loading screen as described in the EAQ, see if that helps.

Did you try removing/disabling foamfix yet? If not, I'd probably try that and see if it helps.

1.7.10 is no longer supported on these forums due to it being super old. You will need to update to a more recent version (1.10+ I believe) to receive support here.

Have you tried running it without the gui? The one time I ran the server with a gui, it made things run slow, so if you haven't, try it without it.

I would try removing the netherrocks mod and see if it still crashes.

It means you're trying to load a client class on the dedicated server. It likely ran fine playing single player, because the client and server are physically the same (but not logically), but once you move the mod to a dedicated server, this will happen. The link about sides that Cadiboo posted should help explain it more.

If you remove that mod, does it still crash? If so, post new crashlog plz

I would say that mrcrayfish furniture mod is trying to access client classes from the dedicated server, probably need to remove it/report it to the mod author.

https://vazkii.us/p/a-semi-technical-explanation-of-why-you-shouldnt-allocate-too-much-ram-to-minecraft/

Your ClientProxy is not derived from CommonProxy, so it cannot be stored in that field, and you also do not tell the @SidedProxy which class to use as the ClientProxy.

You should show what you tried, people are more likely to help debug some already written code than to write some up for you

That log shows 3G ram for minecraft, were you trying a lower setting to see if it helped?

I see exceptions being thrown from applied energistics, have you tried it without that mod? If it works after removing, report the problem to the mod author.

After you've run gradlew build, your jar file will be found in the build/libs directory in your project directory.

Unfortunately, 1.7.10 is so old, it is no longer supported on these forums. You will need to update to a more recent version to receive support.

Correct. After you do that, reinstall forge and see if it works.

I searched these forums for "unknown version" (including the quotes), and it seems you need to run vanilla 1.12.2, then uninstall/reinstall forge. Give that a try, hope it works!

If you don't have logs at least post a screenshot of the crash or something. And I've /never/ seen an error saying "has things from other versions". . .if you're going to quote an error without a log or screenshot, make sure you quote it 100% accurately. Also, where did you download forge from? Hopefully it was files.minecraftforge.net We have nothing to go on, so there's no way anyone could help you with just this information!

This shows a max of only 1G allocated. Post a log where it crashes where you allocate 4G.