View Compilation Error

0_0_33010079_1038.cpp: In member function 'std::unique_ptr<Graph> SCC::DeriveDAG()':
0_0_33010079_1038.cpp:152:16: error: 'make_unique' is not a member of 'std'
     auto dag = std::make_unique<Graph>(size, true);
                ^
0_0_33010079_1038.cpp:152:38: error: expected primary-expression before '>' token
     auto dag = std::make_unique<Graph>(size, true);
                                      ^