Luis_ST

Please post debug.log from the logs folder.

Please post debug.log from the logs folder. Create your own thread and post the log there not in this thread.

Please create your own thread and post there the debug.log from the logs folder. If you using CurseForge you need to enable the debug.log in the settings. You can use https://gist.github.com/ to upload log file.

This is not really helpful. Please post a Git Repo of your Mod.

Your answer have the same result. Moderation: Lock thread, since unsupported version

Do you get this error on server or on client?

Which version of Forge did you use? The installer does generate the .bat and .sh file which must be used to start the server.

What exactly is your problem? Please post debug.log from the logs folder.

But the log you post is the same like in your other thread. Please post debug.log from the logs folder. If you using CurseForge you need to enable the debug.log in the settings.

Please post debug.log from the logs folder. If you using CurseForge you need to enable the debug.log in the settings.

In addition to @warjort: Ideally a Git repo of your Mod, so we can debug this locally.

Mixin is the last thing you should use, it's in no way recommend and officially not supported on this Forum. In general it's better to create a PR to Forge to add a Hook or a Event for this that to use Mixin.

How are you be able to compile this? You should use the public setter PlayerEvent$BreakSpeed#setNewSpeed.

Duplicated thread of: Please do not create duplicate threads.

Do you have any idea what exactly cause this issue, it seems like not? Due this error happens really often and is known by OptiFine and already fixed.