The method getTargetBlock(HashSet<Byte>, int) is ambiguous for the type Player

Take your second attempt and just use Set<Material> transparent = new HashSet<Material>(); instead

 

You need a hashset with bytes instead.

Code (Text):

HashSet<Byte> transparent = new HashSet<Byte>();
transparent.add(Material.AIR.getId());

EDIT
Your first attempt was better, use that one instead. But same there, you need a Byte, not a Material.

 

That is not true.

 

The method using HashSet<Byte> is deprecated, you should not use it.

 

It's deprecated because item IDs can change at all time. However it's impossible for an empty byte hashset to change the values If you can get the one with the material working, sure. If not, it's not a problem to use the byte instead.

 

Just use getTargetBlock(((HashSet<Byte>) null), 30);

 

I'm sorry about the ambiguity. I'll get around to making another PR to remove the deprecated Byte methods soon. Only reason I left it in before was so it didnt break all plugins that used the deprecated Byte methods. Its been over a year now, so should be safe for me to remove them ^_^

Just be sure you're using the Material methods so your plugin doesnt break when I make this change.

 

The following works just fine:

Code (Java):

Player player = (Player)sender;
Block targetBlock = player.getTargetBlock((HashSet<Material>)null, 15);

Make sure you've imported HashSet and Material.

 

Try changing the version of your API.

 

Try using this:

Code (Text):

player.getTargetBlock((HashSet<Byte>)null, {your max distance}).getLocation();