Describe the bug
Field access exception thrown when trying to access the target vectors if the use entity type is INTERACT_AT.
Not sure if this is an issue within ProtocolLib itself since mcp 1.17+ is a pain and couldn't find anything useful there.
Apologies if im looking at the wrong place

To Reproduce
Steps to reproduce the behavior:

1. Listen for the use entity packet
2. Trigger an INTERACT_AT Action
3. Error below pops up

FieldAccessException: No field with type net.minecraft.world.phys.Vec3D exists in class PacketPlayInUseEntity.
[16:56:11 WARN]:        at ProtocolLib.jar//com.comphenix.protocol.reflect.StructureModifier.readInternal(StructureModifier.java:218)
[16:56:11 WARN]:        at ProtocolLib.jar//com.comphenix.protocol.reflect.StructureModifier.read(StructureModifier.java:197)

Expected behavior
Return the target vector

Version Info
https://pastebin.com/qs7AW1yK

Additional context
Methods used to trigger this error:

/**
	 * Retrieve the target vector.
	 * <p>
	 * Notes: Only if {@link #getType()} is {@link EntityUseAction#INTERACT_AT}.
	 *
	 * @return The target vector or null
	 */
	public Vector getTargetVector() {
		return handle.getVectors().readSafely(0);
	}```

Can you provide the code you're using?

@dmulloy2 It's provided in the additional context section. (Edit) i changed it to readSafely(0) in order to avoid any errors and return null for the time being)

Here's the code:

if (packet.getPacketType() != PacketType.Play.Client.USE_ENTITY) return;

        WrapperPlayClientUseEntity useEntity = new WrapperPlayClientUseEntity(packet.getPacket());

        if (useEntity.getType() != EnumWrappers.EntityUseAction.INTERACT_AT) return;

        Vector vec = useEntity.getTargetVector();

        if (vec == null) return;

And the wrapper's method:

        **
	 * Retrieve the target vector.
	 * <p>
	 * Notes: Only if {@link #getType()} is {@link EntityUseAction#INTERACT_AT}.
	 *
	 * @return The target vector or null
	 */
	public Vector getTargetVector() {
		return handle.getVectors().readSafely(0);
	}

This can only be reproduced in 1.17+ servers by using latest ProtocolLib (Or latest dev build) and right clicking an entity.

Fixed, it was a mistake on my end.

Apparently in 1.17+ u have to use the entityModifierEnum in order to get the target vector.