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I am using MQLib to solve a QUBO with fixed variables. However, the following error will come up.
I think we need to add the support of QUBO with fixed variables.
ERROR: LoadError: Constraints of type MathOptInterface.VariableIndex-in-MathOptInterface.EqualTo{Float64} are not supported by the solver.
If you expected the solver to support your problem, you may have an error in your formulation. Otherwise, consider using a different solver.
The list of available solvers, along with the problem types they support, is available at https://jump.dev/JuMP.jl/stable/installation/#Supported-solvers.
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