Warm Starts in JuMP 0.21 & GLPK 0.12.1

Specific Domains Optimization (Mathematical)
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1

When I run a version of the code below, I receive the following error:

Warning: MathOptInterface.VariablePrimalStart() is not supported by MathOptInterface.Bridges.LazyBridgeOptimizer{GLPK.Optimizer}. This information will be discarded.

ā”” @ MathOptInterface.Utilities ~/.julia/packages/MathOptInterface/XiH8D/src/Utilities/copy.jl:140

using JuMP
using GLPK


    prev_u = .15
	model = Model(with_optimizer_attributes(GLPK.Optimizer))
	@variable(model, u >= 0.1, start = prev_u)
    optimize!(model)

What am I doing incorrectly?

2

GLPK does not support starting values. Neither does Clp. Cbc does though.

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