Ugdhar

Those are warnings, not errors, and won't stop your game from starting, there is something else wrong. Read the FAQ, and post full logs please.

I don't have a 1.16.5 workspace, but in the workspace I'm looking at the Mob class has a method called populateDefaultEquipmentSlots that you could try to override and add your pumpkin head there.

The problem with tutorials and documentation, is that the minecraft code changes constantly, so documentation, outside of the very basics, becomes outdated. Using your example of a list of forge's events, you would use your IDE to browse the minecraftforge classes, specifically net.minecraftforge.event where you will find event classes, as well as other packages further refining the events available, such as events for entities, enchanting, brewing, etc. A lot of things can be accomplished by "seeing how vanilla does it" as well. And of course, when new versions come out, there's a chances anything and everything will break, and have to be recoded with whatever new way things are being done.

Please post logs from your specific issue (as directed in the FAQ https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq/) instead of posting on someone elses thread, it will likely get you help faster, as well as identify your specific issue.

Please do not piggyback on other threads. Please read the FAQ (https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq/) and post logs as described there, linking to them here, and someone may be able to help.

Please post the complete log, it will show more information that could help determine the problem.

Please read the FAQ (https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq), and post logs as described. Posting your code (a github repository is preferred) is also useful for getting help debugging.

Please post logs as described in the FAQ (https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq/) and post logs as described there. I have split your reply to the other topic into a new post. It is best to not post in a year+ old topic for an issue, especially when that old topic is marked as solved.

Please start a new topic instead of piggybacking a years old topic that may or may not be related to your issue. Explain what is going wrong with your game, and then post logs as described in the FAQ (https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq).

These are the Minecraft Forge forums, Neoforge is not supported here. You would be best served seeking support on their website and/or discord.

For sharing code, I would suggest putting your mod on github, it would allow someone to build/run your mod to help test, as well as peruse the code. I would at the very least share the code for your new material/tool tier, my first thought would be that it is related to the enchantability level of the material.

Please read the FAQ (https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq/), and post a description of your issue, along with logs posted to a site such as https://mclo.gs and post the link here. Please do not try to piggyback on years old topics that may or may not be your actual issue.

Please read the FAQ and post logs as described there. Even problems that look the same are not always the same, and logs are needed to discover what is going wrong.

Please read the FAQ (https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq/), and post logs as instructed there, to an external site, and share the links to them here.

These are the Minecraft Forge forums, Neoforge is not support here. You would best be served seeking support on (I believe) the Neoforge discord.

Please read the FAQ, and post logs to an external site such as https://mclo.gs and then post the link to them here. I put your log in a spoiler to avoid a massive wall of text for people to scroll through. You have mods that do not work on a dedicated server. Search through your log for "invalid dist" (without the quotes), and each spot you find it will mention a mod that does not work on a dedicated server.

Please read the FAQ and post logs as described there, they may contain information that will help discern the source of the issue.

These are the Minecraft Forge forums, and your modpack runs on Fabric, which is not supported here. You would be best served seeking support wherever fabric support is provided.

Neoforge is not supported on these forums, the best place to get support for Neoforge is from Neoforge.

I'm not sure you can update a mod just by changing the mod.toml, I'm not sure of all the changes, but I would imagine that the code would need to be changed to match any updates/changes from 1.18.2 -> 1.20.1 You could try sharing the full log (instructions on doing so in the FAQ) and seeing if anyone sees any fixable errors.

Always post new logs (to an external site, and posting the link here, as described in the FAQ) after removing mods/trying something to fix it.

Neoforge is not supported here, I would start by looking at https://neoforged.net/ for support

Please read the FAQ (https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq/) and post logs as described there. It will give more information that may help solve your problem.

Please read the FAQ (https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq/) and post logs as described there. Otherwise, there is no way to know what is happening.

The solution to this issue was posted. If you are still having issues, you should read the FAQ, and post a new thread with logs as described there.