E-CE0017 — Unknown variable in fixed_variables
Error Type |
|
|---|---|
Phase |
compiling the problem into an OMMX instance |
Python exception |
|
Message
Unknown decision variable(s) in `fixed_variables`: {...}.
Only variables defined in the problem can be fixed.
Cause
The fixed_variables mapping mentions one or more names that are not decision variables of the problem being compiled — typically a typo, or a variable that was renamed or never added to the problem.
Fix
Use only the names of decision variables that appear in the problem as keys of fixed_variables; remove or correct the listed entries.