View Compilation Error

0_0_20264927_1993.cpp:102:7: error: 'nodei' was not declared in this scope
 queue<nodei *>qu;
       ^
0_0_20264927_1993.cpp:102:14: error: template argument 1 is invalid
 queue<nodei *>qu;
              ^
0_0_20264927_1993.cpp:102:14: error: template argument 2 is invalid
0_0_20264927_1993.cpp:102:17: error: invalid type in declaration before ';' token
 queue<nodei *>qu;
                 ^