MethodError occur running under viscode-REPL but not under normal REPL

[likanzhan]

I want to rerun the example given in the Julia manual (V1.4.1, PP 190-191)

struct SparseArray{T,N} <: AbstractArray{T,N}
    data::Dict{NTuple{N,Int}, T}
    dims::NTuple{N,Int} 
end

SparseArray(::Type{T}, dims::Int...) where {T} = SparseArray(T, dims);
SparseArray(::Type{T}, dims::NTuple{N,Int}) where {T,N} = SparseArray{T,N}(Dict{NTuple{N,Int}, T}(), dims);

Base.size(A::SparseArray) = A.dims
Base.similar(A::SparseArray, ::Type{T}, dims::Dims) where {T} = SparseArray(T, dims)
Base.getindex(A::SparseArray{T,N}, I::Vararg{Int,N}) where {T,N} = get(A.data, I, zero(T))
Base.setindex!(A::SparseArray{T,N}, v, I::Vararg{Int,N}) where {T,N} = (A.data[I] = v)

A = SparseArray(Float64, 3, 3)

Everything works fine when the code is ran under a normal REPL, but when it is ran under the vscode-REPL via view --> Command Palette --> Julia: start REPL, I get the following error:

julia> A = SparseArray(Float64, 3, 3)
3×3 SparseArray{Float64,2}:
 0.0Internal Error: ERROR:   MethodError: no method matching size(::SparseArray{Float64,2})
The applicable method may be too new: running in world age 27143, while current world is 27151.
Closest candidates are:
  size(::SparseArray) at REPL[4]:1 (method too new to be called from this world context.)
  size(::AbstractArray{T,N}, ::Any) where {T, N} at abstractarray.jl:38
  size(::BitArray{1}) at bitarray.jl:99
  ...
Stacktrace:0.0
 [1]   treerender(0.0::SparseArray{
Float64 ,20.0})   at /Users/lzhan/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/trees.jl:1250.0
 [2]   treerender(0.0::VSCodeServer.
SubTree ) at 0.0/Users/lzhan/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/trees.jl:54
   [3] repl_getvariables_request0.0(::  VSCodeServer.JSONRPC.0.0JSONRPCEndpoint, ::
Nothing
julia> 
 [4] dispatch_msg(::VSCodeServer.JSONRPC.JSONRPCEndpoint, ::VSCodeServer.JSONRPC.MsgDispatcher, ::Dict{String,Any}) at /Users/lzhan/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/JSONRPC/src/typed.jl:63
 [5] macro expansion at /Users/lzhan/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/VSCodeServer.jl:83 [inlined]
 [6] (::VSCodeServer.var"#53#55"{Bool,String})() at ./task.jl:358
Internal Error: ERROR: MethodError: no method matching size(::SparseArray{Float64,2})
The applicable method may be too new: running in world age 27143, while current world is 27151.
Closest candidates are:
  size(::SparseArray) at REPL[4]:1 (method too new to be called from this world context.)
  size(::AbstractArray{T,N}, ::Any) where {T, N} at abstractarray.jl:38
  size(::BitArray{1}) at bitarray.jl:99
  ...
Stacktrace:
 [1] treerender(::SparseArray{Float64,2}) at /Users/lzhan/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/trees.jl:125
 [2] treerender(::VSCodeServer.SubTree) at /Users/lzhan/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/trees.jl:54
 [3] repl_getvariables_request(::VSCodeServer.JSONRPC.JSONRPCEndpoint, ::Nothing) at /Users/lzhan/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/request_handlers.jl:88
 [4] dispatch_msg(::VSCodeServer.JSONRPC.JSONRPCEndpoint, ::VSCodeServer.JSONRPC.MsgDispatcher, ::Dict{String,Any}) at /Users/lzhan/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/JSONRPC/src/typed.jl:63
 [5] macro expansion at /Users/lzhan/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/VSCodeServer.jl:83 [inlined]
 [6] (::VSCodeServer.var"#53#55"{Bool,String})() at ./task.jl:358

[pfitzseb]

Will be fixed with #1388.

[tomaklutfu]

I had recently similar issue with smaller MWE but it was working fine couple of days ago.

julia> using ForwardDiff

julia> x = ForwardDiff.Dual(0, 0, 0, 0, 0, 0)
Dual{Nothing}(0,0,0,0,0,0)

julia> Internal Error: ERROR: MethodError: no method matching size(::ForwardDiff.Partials{5,Int64})
The applicable method may be too new: running in world age 27138, while current world is 27147.
Closest candidates are:
  size(::ForwardDiff.Partials{N,V} where V) where N at /home/lutfullah/Programs/homedir/.julia/packages/ForwardDiff/cXTw0/src/partials.jl:21 (method too new to be called from this world context.)
  size(::AbstractArray{T,N}, ::Any) where {T, N} at abstractarray.jl:38
  size(::BitArray{1}) at bitarray.jl:99
  ...
Stacktrace:
 [1] length at ./abstractarray.jl:206 [inlined]
 [2] isempty(::ForwardDiff.Partials{5,Int64}) at ./abstractarray.jl:916
 [3] typeinfo_prefix(::IOContext{Base.GenericIOBuffer{Array{UInt8,1}}}, ::ForwardDiff.Partials{5,Int64}) at ./arrayshow.jl:506
 [4] show_vector(::IOContext{Base.GenericIOBuffer{Array{UInt8,1}}}, ::ForwardDiff.Partials{5,Int64}, ::Char, ::Char) at ./arrayshow.jl:447 (repeats 2 times)
 [5] show(::IOContext{Base.GenericIOBuffer{Array{UInt8,1}}}, ::ForwardDiff.Partials{5,Int64}) at ./arrayshow.jl:420
 [6] _show_default(::Base.GenericIOBuffer{Array{UInt8,1}}, ::Any) at ./show.jl:394
 [7] show_default at ./show.jl:377 [inlined]
 [8] show(::Base.GenericIOBuffer{Array{UInt8,1}}, ::Any) at ./show.jl:374
 [9] sprint(::Function, ::ForwardDiff.Dual{Nothing,Int64,5}; context::Nothing, sizehint::Int64) at ./strings/io.jl:105
 [10] #repr#339 at ./strings/io.jl:227 [inlined]
 [11] repr at ./strings/io.jl:227 [inlined]
 [12] treerender(::ForwardDiff.Dual{Nothing,Int64,5}) at /home/lutfullah/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/trees.jl:134
 [13] treerender(::VSCodeServer.SubTree) at /home/lutfullah/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/trees.jl:54
 [14] repl_getvariables_request(::VSCodeServer.JSONRPC.JSONRPCEndpoint, ::Nothing) at /home/lutfullah/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/request_handlers.jl:88
 [15] dispatch_msg(::VSCodeServer.JSONRPC.JSONRPCEndpoint, ::VSCodeServer.JSONRPC.MsgDispatcher, ::Dict{String,Any}) at /home/lutfullah/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/JSONRPC/src/typed.jl:63
 [16] macro expansion at /home/lutfullah/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/VSCodeServer.jl:83 [inlined]
 [17] (::VSCodeServer.var"#53#55"{Bool,String})() at ./task.jl:358
Internal Error: ERROR: MethodError: no method matching size(::ForwardDiff.Partials{5,Int64})
The applicable method may be too new: running in world age 27138, while current world is 27147.
Closest candidates are:
  size(::ForwardDiff.Partials{N,V} where V) where N at /home/lutfullah/Programs/homedir/.julia/packages/ForwardDiff/cXTw0/src/partials.jl:21 (method too new to be called from this world context.)
  size(::AbstractArray{T,N}, ::Any) where {T, N} at abstractarray.jl:38
  size(::BitArray{1}) at bitarray.jl:99
  ...
Stacktrace:
 [1] length at ./abstractarray.jl:206 [inlined]
 [2] isempty(::ForwardDiff.Partials{5,Int64}) at ./abstractarray.jl:916
 [3] typeinfo_prefix(::IOContext{Base.GenericIOBuffer{Array{UInt8,1}}}, ::ForwardDiff.Partials{5,Int64}) at ./arrayshow.jl:506
 [4] show_vector(::IOContext{Base.GenericIOBuffer{Array{UInt8,1}}}, ::ForwardDiff.Partials{5,Int64}, ::Char, ::Char) at ./arrayshow.jl:447 (repeats 2 times)
 [5] show(::IOContext{Base.GenericIOBuffer{Array{UInt8,1}}}, ::ForwardDiff.Partials{5,Int64}) at ./arrayshow.jl:420
 [6] _show_default(::Base.GenericIOBuffer{Array{UInt8,1}}, ::Any) at ./show.jl:394
 [7] show_default at ./show.jl:377 [inlined]
 [8] show(::Base.GenericIOBuffer{Array{UInt8,1}}, ::Any) at ./show.jl:374
 [9] sprint(::Function, ::ForwardDiff.Dual{Nothing,Int64,5}; context::Nothing, sizehint::Int64) at ./strings/io.jl:105
 [10] #repr#339 at ./strings/io.jl:227 [inlined]
 [11] repr at ./strings/io.jl:227 [inlined]
 [12] treerender(::ForwardDiff.Dual{Nothing,Int64,5}) at /home/lutfullah/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/trees.jl:134
 [13] treerender(::VSCodeServer.SubTree) at /home/lutfullah/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/trees.jl:54
 [14] repl_getvariables_request(::VSCodeServer.JSONRPC.JSONRPCEndpoint, ::Nothing) at /home/lutfullah/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/request_handlers.jl:88
 [15] dispatch_msg(::VSCodeServer.JSONRPC.JSONRPCEndpoint, ::VSCodeServer.JSONRPC.MsgDispatcher, ::Dict{String,Any}) at /home/lutfullah/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/JSONRPC/src/typed.jl:63
 [16] macro expansion at /home/lutfullah/.vscode/extensions/julialang.language-julia-0.16.8/scripts/packages/VSCodeServer/src/VSCodeServer.jl:83 [inlined]
 [17] (::VSCodeServer.var"#53#55"{Bool,String})() at ./task.jl:358

[pfitzseb]

Yeah, this is a regression.

[aviatesk]

should be fixed on the master