julia - 方法错误 : objects of type Module are not callable

Question

我正在尝试复制 Julia 中的代码使用 Jupyter Notebook .
并得到错误

MethodError: objects of type Module are not callable

我在这里想念什么？

using JuMP, Clp
m=Model(solver=Clp())
@variable(m, 0 >= x >= 9)
@variable(m, 0 >= y >= 10)

@objective(m,Min,3x-y)

@constraint(m,const1, 6x+5y <=30)
@constraint(m,const2, 7x+12y <= 84)
@constraint(m,const3, 19x+14y <=266)

solve(m)
println("Optimal Solutions:")
println("x = ", getvalue(x))
println("y = ", getvalue(y))

Answer 1

Clp是一个模块，你不能调用一个模块，即。 Cpl() , 你想调用ClpSolver相反，请参阅:

http://jump.readthedocs.io/en/latest/installation.html#getting-solvers

使用: m = Model(solver = ClpSolver())