When trying to code the Title Packets, the import for the 3 required packages that begin with org.spigotmc.title.protocolinjector don't work properly.

If still says there's errors with CraftPlayer, IChatBaseComponent, ChatSerializer, PacketTitle, and Action.

It acts as if the import didn't exist at all, but it's not suggesting a different one.

To expand on that, Action wants you to import different things, 1 having to do with Bukkit.block and the other with java. The PacketTitles want you to change them. CraftPlayer "cannot be resolved to a type".