ERROR: LoadError: LoadError: UndefVarError: ASCIIString not defined

General Usage
,
1

I am running the following code in Julia 0.6.4 with Jupyter notebook

using RegERMs

# define some toy data (XOR - example)
np = 100
nn = 100
X = [randn(int(np/2),1)+1 randn(int(np/2),1)+1; randn(int(np/2-0.5),1)-1 randn(int(np/2-0.5),1)-1;
     randn(int(nn/2),1)+1 randn(int(nn/2),1)-1; randn(int(nn/2-0.5),1)-1 randn(int(nn/2-0.5),1)+1] # examples with 2 features
y = int(vec([ones(np,1); -ones(nn,1)]))       # binary class values

# use rbf kernel by using mercer map
map = MercerMap(X, :rbf)
X = RegERMs.apply(map)

# choose (linear) SVM as learning algorithm with regularization parameter 0.1
svm = SVM(X, y; λ=0.1)

# get a solution 
model = optimize(svm)

# make predictions and compute accuracy
ybar = predict(model, X)
acc = mean(ybar .== y)

and I am getting the following error;

WARNING: deprecated syntax “abstract Optimizer” at C:\Users\ippok.julia\v0.6\Optim\src\types.jl:2.
Use “abstract type Optimizer end” instead.

WARNING: deprecated syntax “abstract OptimizationResults” at C:\Users\ippok.julia\v0.6\Optim\src\types.jl:65.
Use “abstract type OptimizationResults end” instead.
WARNING: Compat.ASCIIString is deprecated, use String instead.
likely near C:\Users\ippok.julia\v0.6\Optim\src\types.jl:66
WARNING: Compat.ASCIIString is deprecated, use String instead.
likely near C:\Users\ippok.julia\v0.6\Optim\src\types.jl:66
WARNING: Compat.ASCIIString is deprecated, use String instead.
likely near C:\Users\ippok.julia\v0.6\Optim\src\types.jl:84
WARNING: Compat.ASCIIString is deprecated, use String instead.
likely near C:\Users\ippok.julia\v0.6\Optim\src\types.jl:84
ERROR: LoadError: LoadError: UndefVarError: ASCIIString not defined

Stacktrace:
[1] include_from_node1(::String) at .\loading.jl:576
[2] include(::String) at .\sysimg.jl:14
[3] include_from_node1(::String) at .\loading.jl:576
[4] include(::String) at .\sysimg.jl:14
[5] anonymous at .<missing>:2
while loading C:\Users\ippok.julia\v0.6\Optim\src\problems\unconstrained.jl, in expression starting on line 10
while loading C:\Users\ippok.julia\v0.6\Optim\src\Optim.jl, in expression starting on line 96
LoadError: Failed to precompile Optim to C:\Users\ippok.julia\lib\v0.6\Optim.ji.
while loading C:\Users\ippok.julia\v0.6\RegERMs\src\RegERMs.jl, in expression starting on line 4

Stacktrace:
[1] compilecache(::String) at .\loading.jl:710
[2] _require(::Symbol) at .\loading.jl:497
[3] require(::Symbol) at .\loading.jl:405
[4] include_from_node1(::String) at .\loading.jl:576
[5] eval(::Module, ::Any) at .\boot.jl:235
[6] _require(::Symbol) at .\loading.jl:490
[7] require(::Symbol) at .\loading.jl:405
[8] include_string(::String, ::String) at .\loading.jl:522
[9] execute_request(::ZMQ.Socket, ::IJulia.Msg) at C:\Users\ippok.julia\v0.6\IJulia\src\execute_request.jl:193
[10] (::Compat.#inner#6{Array{Any,1},IJulia.#execute_request,Tuple{ZMQ.Socket,IJulia.Msg}})() at C:\Users\ippok.julia\v0.6\Compat\src\Compat.jl:189
[11] eventloop(::ZMQ.Socket) at C:\Users\ippok.julia\v0.6\IJulia\src\eventloop.jl:8
[12] (::IJulia.##13#16)() at .\task.jl:335

Here below the output of Pkg.status() comand

4 required packages:

  • IJulia 1.10.0
  • OrdinaryDiffEq 2.21.2
  • RegERMs 0.0.2
  • Regression 0.3.0
    52 additional packages:
  • ArrayViews 0.7.0
  • BinDeps 0.8.10
  • BinaryProvider 0.3.3
  • Calculus 0.4.1
  • CommonSubexpressions 0.1.0
  • Compat 1.3.0
  • Conda 1.0.2
  • DataStructures 0.8.4
  • DiffBase 0.2.0
  • DiffEqBase 3.13.3
  • DiffEqDiffTools 0.0.2
  • Distances 0.6.0
  • DualNumbers 0.4.0
  • EmpiricalRisks 0.2.4
  • ForwardDiff 0.5.0
  • FunctionWrappers 1.0.0
  • GenericSVD 0.1.0
  • IteratorInterfaceExtensions 0.0.2
  • JSON 0.17.2
  • Juno 0.4.1
  • LineSearches 0.1.5
  • LinearMaps 1.0.4
  • MacroTools 0.4.4
  • MbedTLS 0.5.13
  • Media 0.3.0
  • Missings 0.2.10
  • MuladdMacro 0.0.2
  • NLSolversBase 2.1.3
  • NLsolve 0.9.1
  • NaNMath 0.3.2
  • NamedTuples 4.0.2
  • Nullables 0.0.8
  • Optim 0.4.7
  • Parameters 0.9.2
  • PositiveFactorizations 0.1.0
  • RealInterface 0.0.3
  • RecipesBase 0.3.1
  • RecursiveArrayTools 0.12.4
  • Reexport 0.1.0
  • Requires 0.4.4
  • Roots 0.7.3
  • SHA 0.5.7
  • SimpleTraits 0.6.0
  • SoftGlobalScope 1.0.7
  • SortingAlgorithms 0.2.1
  • SpecialFunctions 0.6.0
  • StaticArrays 0.7.2
  • StatsBase 0.23.1
  • TableTraits 0.2.0
  • URIParser 0.3.1
  • VersionParsing 1.1.3
  • ZMQ 0.6.4