# \[AMPL 25053\] Octeract solver not working **URL:** \ **Category:** Google Group Mirror\ **Created:** [August 7, 2024, 3:32pm UTC](https://discuss.ampl.com/t/ampl-25053-octeract-solver-not-working/1174 "2024-08-07T15:32:12Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Cai\_Gangying](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.ampl.com/cai_gangying/32/778_2.png) [@Cai\_Gangying](https://discuss.ampl.com/u/Cai_Gangying)\ **Post date:** [August 7, 2024, 3:32pm UTC](https://discuss.ampl.com/t/ampl-25053-octeract-solver-not-working/1174/1 "2024-08-07T15:32:12Z")
Greetings to the esteemed AMPL team. I am a current student and have applied for a trial of octeract. According to the official website for octeract: “ampl: option solver octeract; # change the solver ampl: option octeract\_options ‘option1=value1 option2= value2’; # specify options ampl: solve; # solve the problem”. I made the call to octeract in AMPL, but I get the following result: “Set to _option1=value1 option2=value2 MIP\_SOLVER=CPLEX_ Option name mismatch. could not find option with name “OPTION1”. Could not find option with name “OPTION1”. exit value 1 ”. May I ask why this result occurs? Obviously, octeract is still in the trial period, why can’t I use it? ---
**Author:** ![AMPL\_Google\_Group1](https://avatars.discourse-cdn.com/v4/letter/a/a87d85/32.png) [@AMPL\_Google\_Group1](https://discuss.ampl.com/u/AMPL_Google_Group1)\ **Post date:** [August 7, 2024, 11:11pm UTC](https://discuss.ampl.com/t/ampl-25053-octeract-solver-not-working/1174/2 "2024-08-07T23:11:48Z")
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