ByteArray is actually a struct in C, which has "data" and "len" members. As VAPI can't define proper length variable yet (at least as far as I know), Vala tries to use data_length1, which obviously can't compile.

One solution would be to add a CCode property for this (which I don't really know how to do). Another is this simple change that adds an inline method to access the data. (sorry but I don't know how to use diff :( )






	[Compact]
	[CCode (cprefix = "g_byte_array_", free_function = "g_byte_array_free")]
	public class ByteArray {
		public ByteArray ();
		[CCode (cname = "g_byte_array_sized_new")]
		public ByteArray.sized (uint reserved_size);
		public void append (uint8[] data);
		public void prepend (uint8[] data);
		public void remove_index (uint index);
		public void remove_index_fast (uint index);
		public void remove_range (uint index, uint length);
		public void sort (CompareFunc compare_func);
		public void sort_with_data (CompareDataFunc compare_func);
		public void set_size (uint length);

		private uint len;
		[CCode (array_length = false, array_null_terminated = false)]
		private uint8[] data;

		public unowned uint8[] get_data () {
			unowned uint8[] tmp = data;
			tmp.length = (int) len;
			return tmp;
		}
	}