# A question about JuliaInv

**URL:** <https://discourse.julialang.org/t/a-question-about-juliainv/13992>\
**Category:** General Usage\
**Tags:** question, package\
**Created:** [August 24, 2018, 12:48pm UTC](https://discourse.julialang.org/t/a-question-about-juliainv/13992 "2018-08-24T12:48:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![chdlkl](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chdlkl/32/4835_2.png) [@chdlkl](https://discourse.julialang.org/u/chdlkl)\
**Post date:** [August 24, 2018, 12:48pm UTC](https://discourse.julialang.org/t/a-question-about-juliainv/13992/1 "2018-08-24T12:48:59Z")

</div>

```julia
I downloaded the MaxwellTime package from https://github.com/JuliaInv/MaxwellTime. 
When I tested testAnalyticsGroundedSource.jl in the folder test, I encountered the following problem. Does anyone know how to solve it?

julia> include("testAnalyticsGroundedSource.jl")
ERROR: LoadError: MethodError: no method matching getMaxwellTimeParam(::JOcTree.OcTreeMeshFV{Float64
,Int64,Int64}, ::SparseMatrixCSC{Float64,Int64}, ::SparseMatrixCSC{Float64,Int64}, ::Array{Float64,1
}, ::Array{Float64,1}, ::Array{Float64,1}, ::Symbol)
Closest candidates are:
  getMaxwellTimeParam(::jInv.Mesh.AbstractMesh, ::AbstractArray{S<:Real,N} where N, ::AbstractArray{
S<:Real,N} where N, ::Array{S<:Real,1}, ::S<:Real, ::Array{S<:Real,1}, ::Array{S<:Real,1}, ::Symbol;
 storageLevel, sensitivityMethod, timeIntegrationMethod, EMsolverType, DCsolverType, modUnits, verbo
sity, cgTol) where S<:Real at C:\Users\luk\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\MaxwellT
ime\src\MaxwellTimeParam.jl:200
while loading C:\Users\luk\AppData\Local\JuliaPro-0.6.4.1\pkgs-0.6.4.1\v0.6\MaxwellTime\test\testAna
lyticsGroundedSource.jl, in expression starting on line 56

I am looking forward to your answer!!!

```