I can't compile kruskal_mst.h.

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Look this.
I can't compile kruskal_mst.h.
Who can help me?

Message:
/home/yangjz/code/forkprojects/algorithms/include/kruskal_mst.h: In member function ‘alg::Graph* alg::Kruskal::run()’:
/home/yangjz/code/forkprojects/algorithms/include/kruskal_mst.h:143:41: error: ‘class alg::Heapalg::Graph::Vertex*’ has no member named ‘min_key’
if(!pa->heap.is_empty()&&pa->heap.min_key()<weight) {
^~~~~~~
/home/yangjz/code/forkprojects/algorithms/include/kruskal_mst.h:144:26: error: ‘class alg::Heapalg::Graph::Vertex*’ has no member named ‘min_key’
weight = pa->heap.min_key();
^~~~~~~
/home/yangjz/code/forkprojects/algorithms/include/kruskal_mst.h:145:21: error: ‘class alg::Heapalg::Graph::Vertex*’ has no member named ‘min_value’
v = pa->heap.min_value();
^~~~~~~~~
/home/yangjz/code/forkprojects/algorithms/include/kruskal_mst.h:174:23: error: ‘class alg::Heapalg::Graph::Vertex*’ has no member named ‘delete_min’
best_from->heap.delete_min();
^~~~~~~~~~
/home/yangjz/code/forkprojects/algorithms/include/kruskal_mst.h:175:29: error: ‘class alg::Heapalg::Graph::Vertex*’ has no member named ‘delete_min’
lookup(best_to)->heap.delete_min();
^~~~~~~~~~
/home/yangjz/code/forkprojects/algorithms/include/kruskal_mst.h: In member function ‘void alg::Kruskal::print()’:
/home/yangjz/code/forkprojects/algorithms/include/kruskal_mst.h:191:35: error: no match for ‘operator[]’ (operand types are ‘alg::Heapalg::Graph::Vertex*’ and ‘uint32_t {aka unsigned int}’)
Graph::Vertex * v = pa->heap[i];