I have a nonlinear complementary optimization problem in AMPL, and I’ve selected the path solver for this problem. My AMPL license is free community edition and I’ve downloaded the exe file of the solver from the Wisconsin university website (The PATH Solver). But I received the following error after running my code: The solution is found, but I cannot access the results. I would really appreciate it if someone let me know how I could fix it.
** EXIT - solution found.
Major Iterations. . . . 34
Minor Iterations. . . . 30022
Restarts. . . . . . . . 2
Crash Iterations. . . . 4
Gradient Steps. . . . . 12
Function Evaluations. . 329
Gradient Evaluations. . 41
Basis Time. . . . . . . 182.244000
Total Time. . . . . . . 190.953000
Residual. . . . . . . . 8.398294e-09
Postsolved residual: 8.3983e-09
Path 5.0.05: Solution found.
38 iterations (4 for crash); 30022 pivots.
329 function, 41 gradient evaluations.
Error at _cmdno 174 executing “solve” command
(file temp.run, line 18, offset 409):
Solution obtained using an unauthorized or unknown solver. Please contact firstname.lastname@example.org.