# No method matching zero(::Type{Array{Float64,2}})

**URL:** <https://discourse.julialang.org/t/no-method-matching-zero-type-array-float64-2/57538>\
**Category:** Data\
**Tags:** question, package\
**Created:** [March 19, 2021, 1:47pm UTC](https://discourse.julialang.org/t/no-method-matching-zero-type-array-float64-2/57538 "2021-03-19T13:47:53Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![aramirezreyes](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/aramirezreyes/32/42573_2.png) [@aramirezreyes](https://discourse.julialang.org/u/aramirezreyes)\
**Post date:** [March 19, 2021, 6:51pm UTC](https://discourse.julialang.org/t/no-method-matching-zero-type-array-float64-2/57538/12 "2021-03-19T18:51:35Z")

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Unfortunately it is kind of difficult to help with so little information. Could you paste a way to reproduce your arrays? Maybe uploading a smaller version of them and/or how to create them. It will be easier to debug then.

For example, in your code you don’t show the definition of `XTXS`, which you are using then when you do

```julia
MME= XTXS + LamI
b = RHS/MME

```

You can take a look at this thread with advice on what kind of info would make it easier.  
[PSA: make it easier to help you](https://discourse.julialang.org/t/psa-make-it-easier-to-help-you/14757)

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