rasterize gives a confusing error when fill=:nonexistingcolumn

[felixcremer]

If I run rasterize with the fill keyword and give it a symbol of a :nonexistingcolumn I get the following confusing error.
Here shp is a Shapefile.Table and bbox is an Extent type.

julia> shpras = rasterize(shp; to=bbox, res=res, fill=:nonexistingcolumn)
ERROR: MethodError: zero(::Type{Union{}}) is ambiguous. Candidates:
  zero(::Union{Type{P}, P}) where P<:Dates.Period in Dates at /home/fcremer/.julia/juliaup/julia-1.8.4+0.x64.linux.gnu/share/julia/stdlib/v1.8/Dates/src/periods.jl:53
  zero(t::Union{Type{<:Zarr.DateTime64}, Zarr.DateTime64}) in Zarr at /home/fcremer/.julia/packages/Zarr/tmr2s/src/metadata.jl:47
  zero(::Type{<:AbstractIrrational}) in Base at irrationals.jl:151
  zero(::Type{C}) where C<:(ColorTypes.Colorant{T, 5} where T) in ColorTypes at /home/fcremer/.julia/packages/ColorTypes/1dGw6/src/traits.jl:476
  zero(::Type{C}) where C<:(ColorTypes.Colorant{T, 4} where T) in ColorTypes at /home/fcremer/.julia/packages/ColorTypes/1dGw6/src/traits.jl:475
  zero(::Type{C}) where C<:(ColorTypes.Colorant{T, 3} where T) in ColorTypes at /home/fcremer/.julia/packages/ColorTypes/1dGw6/src/traits.jl:474
  zero(::Type{C}) where C<:(ColorTypes.Colorant{T, 2} where T) in ColorTypes at /home/fcremer/.julia/packages/ColorTypes/1dGw6/src/traits.jl:473
  zero(::Type{C}) where C<:(ColorTypes.Colorant{T, 1} where T) in ColorTypes at /home/fcremer/.julia/packages/ColorTypes/1dGw6/src/traits.jl:472
  zero(::Type{X}) where X<:FixedPointNumbers.FixedPoint in FixedPointNumbers at /home/fcremer/.julia/packages/FixedPointNumbers/HAGk2/src/FixedPointNumbers.jl:107
  zero(::Type{T}) where T<:Number in Base at number.jl:297
  zero(::Type{<:ChainRulesCore.NotImplemented}) in ChainRulesCore at /home/fcremer/.julia/packages/ChainRulesCore/C73ay/src/tangent_types/notimplemented.jl:52
  zero(::Type{<:ChainRulesCore.AbstractTangent}) in ChainRulesCore at /home/fcremer/.julia/packages/ChainRulesCore/C73ay/src/tangent_types/abstract_zero.jl:58
  zero(a::Type{SA}) where SA<:StaticArraysCore.StaticArray in StaticArrays at /home/fcremer/.julia/packages/StaticArrays/jA1zK/src/linalg.jl:96
Possible fix, define
  zero(::Type{Union{}})
Stacktrace:
 [1] _rasterize(to::Tuple{X{Projected{Float64, StepRangeLen{Float64, Base.TwicePrecision{Float64}, Base.TwicePrecision{Float64}, Int64}, DimensionalData.Dimensions.LookupArrays.ForwardOrdered, DimensionalData.Dimensions.LookupArrays.Regular{Float64}, DimensionalData.Dimensions.LookupArrays.Intervals{DimensionalData.Dimensions.LookupArrays.Start}, DimensionalData.Dimensions.LookupArrays.NoMetadata, Nothing, Nothing, Rasters.AutoDim}}, Y{Projected{Float64, StepRangeLen{Float64, Base.TwicePrecision{Float64}, Base.TwicePrecision{Float64}, Int64}, DimensionalData.Dimensions.LookupArrays.ForwardOrdered, DimensionalData.Dimensions.LookupArrays.Regular{Float64}, DimensionalData.Dimensions.LookupArrays.Intervals{DimensionalData.Dimensions.LookupArrays.Start}, DimensionalData.Dimensions.LookupArrays.NoMetadata, Nothing, Nothing, Rasters.AutoDim}}}, ::Nothing, data::Shapefile.Table{Union{Missing, Shapefile.Polygon}}; fill::Symbol, name::Symbol, kw::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
   @ Rasters ~/.julia/packages/Rasters/gV0im/src/methods/rasterize.jl:119
 [2] #_rasterize#507
   @ ~/.julia/packages/Rasters/gV0im/src/methods/rasterize.jl:90 [inlined]
 [3] _rasterize(to::Extent{(:X, :Y), Tuple{Tuple{Float64, Float64}, Tuple{Float64, Float64}}}, data::Shapefile.Table{Union{Missing, Shapefile.Polygon}}; fill::Symbol, name::Symbol, res::Float64, size::Nothing, kw::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
   @ Rasters ~/.julia/packages/Rasters/gV0im/src/methods/rasterize.jl:87
 [4] #rasterize#502
   @ ~/.julia/packages/Rasters/gV0im/src/methods/rasterize.jl:66 [inlined]
 [5] top-level scope
   @ REPL[35]:1

[rafaqz]

The error is now:

ERROR: ArgumentError: fill key nonexistingcolumn not found in table, use one of: (:geometry, :val1, :val2)