Error sum{} function

[Vgrunert]

Hi,

I get the following error when using sum{...} in @setObjective():

ERROR: LoadError: MethodError: colon has no method matching colon(::Int32, ::JuMP.Model)

when trying to reproduce the mle.jl example. Here is the code:

function gauss( )
m = 100
data = rand( Normal( -3, 7 ), m )
m = Model( solver = NLoptSolver( algorithm = :LD_MMA ) )
@defvar(m, μ, start = 0.0)
@defvar(m, σ >= 0.0, start = 1.0)
@setNLObjective(m, Max, (m/2)_log(1/(2π_σ^2))-sum{(data[i]-μ)^2, i=1:m}/(2σ^2))
solve(m)
println("μ = ", getValue(μ))
println("mean(data) = ", mean(data))
println("σ^2 = ", getValue(σ)^2)
println("var(data) = ", var(data))
println("MLE objective: ", getObjectiveValue(m))
end

And I get the same error when running this:

function test( )
m = 100
data = rand( Normal( -3, 7 ), m )
m = Model( solver = SCSSolver( ) )
@defvar(m, μ, start = 0.0)
@setObjective(m, Min, sum{(data[i]-μ)^2, i=1:m})
solve(m)
println("μ = ", getValue(μ))
end

So I can rule out the solver/non linearity as the source of the error. I don't get an error when using this:

@setObjective(m, Min, 2μ)

in the test() function.

Here are the julia infos:
Julia Version 0.4.0-rc1

• JuMP 0.10.2
• NLopt 0.2.3
• SCS 0.0.9

And the full error message:
ERROR: LoadError: MethodError: colon has no method matching colon(::Int32, ::JuMP.Model)
Closest candidates are:
colon{T<:Real}(::T<:Real, ::Any, ::T<:Real)
colon{A<:Real,C<:Real}(::A<:Real, ::Any, ::C<:Real)
colon{T}(::T, ::Any, ::T)
...
[inlined code] from /home/...julia/v0.4/JuMP/src/v0.4/parseExpr_staged.jl:325
in testc at /home/.../Dropbox/Programming/Languages/julia/mathProgramming/cP/estimtion.jl:99
in main at /home/.../Dropbox/Programming/Languages/julia/mathProgramming/cP/estimtion.jl:113
in include at ./boot.jl:260
in include_from_node1 at ./loading.jl:271
while loading /home/.../Dropbox/Programming/Languages/julia/mathProgramming/cP/estimtion.jl, in expression starting on line 117