FlexUnits & Structs

In creating a struct with units I don’t have a problem if each field of the struct has units. I am running into an error when not all the fields have units. Can someone show me where I am going wrong.

# Test unit structures
using FlexUnits, .UnitRegistry
import FlexUnits: QuantFieldVector, DimsMod

mutable struct Foo{T} <: QuantFieldVector{2,T}
    num::Integer
    leng::Quantity{T, D"m"}
end

num = 2
leng = 2.2u"m"
F = Foo(; num, leng)
ERROR: MethodError: no method matching Foo(; num::Int64, leng::Quantity{Float64, StaticDims{m}})
This method does not support all of the given keyword arguments (and may not support any).

Closest candidates are:
  Foo(::Integer, ::Quantity{T, StaticDims{m}}) where T got unsupported keyword arguments "num", "leng"
   @ Main REPL[5]:2
  (::Type{FA})(::Tuple) where FA<:StaticArraysCore.FieldArray got unsupported keyword arguments "num", "leng"
   @ StaticArrays C:\Users\jakez\.julia\packages\StaticArrays\SXG7G\src\FieldArray.jl:2
  (::Type{SA})(::Base.Generator) where SA<:StaticArraysCore.StaticArray got unsupported keyword arguments "num", "leng"
   @ StaticArrays C:\Users\jakez\.julia\packages\StaticArrays\SXG7G\src\SArray.jl:57
  ...

Stacktrace:
 [1] top-level scope
   @ REPL[8]:1

ERROR: MethodError: no method matching Foo(; num::Int64, leng::Quantity{Float64, StaticDims{m}})
This method does not support all of the given keyword arguments (and may not support any).

Closest candidates are:
  Foo(::Integer, ::Quantity{T, StaticDims{m}}) where T got unsupported keyword arguments "num", "leng"
   @ Main c:\data\st\Julia\WinderCurves\examples\addseries\test.jl:44
  (::Type{FA})(::Tuple) where FA<:StaticArraysCore.FieldArray got unsupported keyword arguments "num", "leng"
   @ StaticArrays C:\Users\jakez\.julia\packages\StaticArrays\SXG7G\src\FieldArray.jl:2
  (::Type{SA})(::Base.Generator) where SA<:StaticArraysCore.StaticArray got unsupported keyword arguments "num", "leng"
   @ StaticArrays C:\Users\jakez\.julia\packages\StaticArrays\SXG7G\src\SArray.jl:57
  ...

Stacktrace:
 [1] top-level scope
   @ c:\data\st\Julia\WinderCurves\examples\addseries\test.jl:50

julia> 

I think perhaps it’s just an errant semicolon. Try

F = Foo(num, leng)