Multi-threading throws error when evaluate generates DataFrame

[pat-alt]

Multi-threading throws error when evaluate generates DataFrame

ERROR: TaskFailedException
Stacktrace:
 [1] wait(t::Task)
   @ Base ./task.jl:370
 [2] fetch(t::Task)
   @ Base ./task.jl:390
 [3] parallelize(::TaijaParallel.ThreadsParallelizer, ::typeof(CounterfactualExplanations.Evaluation.evaluate), ::SubArray{…}, ::Vararg{…}; verbose::Bool, kwargs::@Kwargs{…})
   @ TaijaParallel ~/.julia/packages/TaijaParallel/qNOpL/src/CounterfactualExplanations.jl/threads/evaluate.jl:73
 [4] parallelize(::MPIExt.MPIParallelizer, ::typeof(CounterfactualExplanations.Evaluation.evaluate), ::Vector{…}, ::Vararg{…}; verbose::Bool, kwargs::@Kwargs{…})
   @ MPIExt ~/.julia/packages/TaijaParallel/qNOpL/ext/MPIExt/evaluate.jl:69
 [5] benchmark(data::CounterfactualData; test_data::Nothing, models::Dict{…}, generators::Dict{…}, measure::Vector{…}, n_individuals::Int64, n_runs::Int64, suppress_training::Bool, factual::Nothing, target::Nothing, store_ce::Bool, parallelizer::MPIExt.MPIParallelizer, dataname::Nothing, verbose::Bool, vertical_splits::Nothing, storage_path::String, kwrgs::@Kwargs{})
   @ CounterfactualExplanations.Evaluation ~/.julia/packages/CounterfactualExplanations/Xhi6p/src/evaluation/benchmark.jl:355
 [6] evaluate_counterfactuals(grid::ExperimentGrid; generators::Nothing, measure::Vector{Function}, parallelizer::Nothing)
   @ CTExperiments ~/code/CounterfactualTraining.jl/paper/experiments/CTExperiments/src/evaluate.jl:114
 [7] evaluate_counterfactuals(grid::ExperimentGrid)
   @ CTExperiments ~/code/CounterfactualTraining.jl/paper/experiments/CTExperiments/src/evaluate.jl:78
 [8] top-level scope
   @ REPL[41]:1

    nested task error: MethodError: Cannot `convert` an object of type 
      DataFrames.DataFrame to an object of type 
      Vector
    The function `convert` exists, but no method is defined for this combination of argument types.
    
    Closest candidates are:
      convert(::Type{Vector}, ::PooledArrays.PooledVector{T, R}) where {T, R}
       @ PooledArrays ~/.julia/packages/PooledArrays/Vy2X0/src/PooledArrays.jl:509
      convert(::Type{Vector}, ::StatsBase.UnitWeights{T}) where T
       @ StatsBase ~/.julia/packages/StatsBase/ebrT3/src/weights.jl:317
      convert(::Type{Vector}, ::StatsBase.AbstractWeights)
       @ StatsBase ~/.julia/packages/StatsBase/ebrT3/src/weights.jl:35
      ...
    
    Stacktrace:
     [1] setindex!(A::Vector{Vector}, x::DataFrames.DataFrame, i::Int64)
       @ Base ./array.jl:976
     [2] (::TaijaParallel.var"#22#24"{…})()
       @ TaijaParallel ~/.julia/packages/TaijaParallel/qNOpL/src/CounterfactualExplanations.jl/threads/evaluate.jl:63
Some type information was truncated. Use `show(err)` to see complete types.