Ugdhar

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.

1.7.10 is really really old, and no longer supported on these forums. If you want support here, you will have to update to a more recent version.

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

I would go right for 1.12.2, latest and greatest!

1.7.10 is very old and no longer supported on these forums. You will need to update to a more recent version for support.

1.7.10 is really old, and no longer supported on these forums. You will need to update in order to receive support.

I searched the forums for "libraries failed to download", and this is the first result (after your post that is) http://www.minecraftforge.net/forum/topic/65042-these-libraries-failed-too-download/?tab=comments#comment-308666 A possible solution is presented there.

Remove xray mod from the server and try again, looks like it's trying to read client stuff, which doesn't exist on the server.

Remove all torohealthmod files from your server and try again.

Looks like you're registering yugioh_cardback_item twice. I'm guessing copy & paste are to blame.

1.7.10 is no longer supported on these forums, due to it being ancient. You will need to update to receive support here.

These logs are from 2 different versions of minecraft. The first one is for 1.10.2, second is for 1.8.9 Also the second log states: Server brand: BungeeCord (Hypixel) <- vanilla

You must use Java 8, not 9 or 10. If you have 9 or 10 installed alongside 8, you will need to specify the full path to the java.exe when launching (easier to remove 9 and/or 10 if you don't have a specific need for them)

I think you're missing hasTileEntity in your block code

Please post the entire fml-client-latest.log, not just the exceptions. edit: It may be called latest.log in the more recent versions.

Pretty sure this belong in modder support. You should also post a link to a github repository of your code so people can check it out to see where it's going wrong. If I had to just make a guess, something in your registration code is broken.

Also, check the output of java -version from the commandline to make sure you have the 64 bit version installed (even if you have 64 bit windows, it is possible to have the 32 bit java). If the output of that command does not say 64-bit anywhere, then you are running the 32 bit and need to get the 64.

You might want to choose a new "main mod", because it sounds like the one in question has performance issues. As MDW01 said, if you limit the CPU usage for that server, when your "main mod" wants to suck up all those sweet sweet CPU cycles and can't, that server will bog right out, causing issues. You have to ask yourself the question: Which is worse, unplayable server, or server without this "main mod"?

Did you install forge? Did you make a new launcher profile? Where are you downloading the mod from? Where did you put the mod? Post log files in spoiler (the eyeball button) tags, it should be in logs/fml-client-latest.log from the minecraft profile directory.

I have seen support given for versions as old as 1.8.9, however with lots of grumbling and expletives and saying to upgrade, because that version too is getting quite old. I believe the official stance, is that the current version, and previous version are the officially supported versions. I would personally not ask for help for anything older than 1.10.2. I could see once 1.13 comes out threads being closed for anything older than 1.10, but honestly, that's up to Lexmanos and his moderators. As far as keeping a server running and in good health, honestly pretty much depends on how old your minecraft version is, older versions will be more prone to crashing and such (I know people think 1.7.10 is better, but technologically, it just is not), and how many/how well written the mods you are using are. And of course if you have enough CPU/RAM to support the amount of mods and players you want. If you make a server with 10 mods, and run into an issue, it likely wouldn't take long to find what is causing the problem. If you make a server with 200 mods, that would take longer to figure out which mod or mods were causing the issue. The closing of the thread is not because of fear of you spamming the thread, it is simply because 1.7.10 is no longer supported here, and is REALLY old, and for the silliest reasons people continue to cling to it and will not upgrade, despite all the hard work these folks put into the new versions, and clearly stating in the EAQ (which says READ FIRST BEFORE POSTING) that old versions are not supported. So, closing the thread is not quite the slap in the face you are making it out to be, considering people don't read the rules they are asked to before posting, and continue to use outdated software despite being presented with updated versions. Upgrade to a more recent version, try again, if it breaks, return with a crashlog for a version 1.10.2+, success!