DiffEqOperators fails to precompile on Windows 10, Julia 1.6.0

[draneyjosu]

Hello,
I am on Windows 10, Julia 1.6.0. For some reason Julia fails to precompile DiffEqOperators v4.25.0. Meanwhile, v4.24.0 precompiles just fine.

Output when I try using DiffEqOperators:

julia> using DiffEqOperators
[ Info: Precompiling DiffEqOperators [9fdde737-9c7f-55bf-ade8-46b3f136cc48]
ERROR: LoadError: LoadError: LoadError: Unsupported Expr of type $ found in pattern
Stacktrace:
  [1] error(s::String)
    @ Base .\error.jl:33
  [2] makepattern(expr::Expr, keys::Vector{Symbol})
    @ SymbolicUtils ~\.julia\packages\SymbolicUtils\oQKim\src\rule.jl:73
  [3] (::SymbolicUtils.var"#60#61"{Vector{Symbol}})(x::Expr)
    @ SymbolicUtils ~\.julia\packages\SymbolicUtils\oQKim\src\rule.jl:70
  [4] iterate
    @ .\generator.jl:47 [inlined]
  [5] _collect(c::Vector{Any}, itr::Base.Generator{Vector{Any}, SymbolicUtils.var"#60#61"{Vector{Symbol}}}, #unused#::Base.EltypeUnknown, isz::Base.HasShape{1})
    @ Base .\array.jl:691
  [6] collect_similar
    @ .\array.jl:606 [inlined]
  [7] map
    @ .\abstractarray.jl:2294 [inlined]
  [8] makepattern(expr::Expr, keys::Vector{Symbol})
    @ SymbolicUtils ~\.julia\packages\SymbolicUtils\oQKim\src\rule.jl:70
  [9] var"@rule"(__source__::LineNumberNode, __module__::Module, expr::Any)
    @ SymbolicUtils ~\.julia\packages\SymbolicUtils\oQKim\src\rule.jl:266
 [10] include(mod::Module, _path::String)
    @ Base .\Base.jl:386
 [11] include(x::String)
    @ DiffEqOperators ~\.julia\packages\DiffEqOperators\DMNmH\src\DiffEqOperators.jl:1
 [12] top-level scope
    @ ~\.julia\packages\DiffEqOperators\DMNmH\src\DiffEqOperators.jl:52
 [13] include
    @ .\Base.jl:386 [inlined]
 [14] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt64}}, source::Nothing)
    @ Base .\loading.jl:1213
 [15] top-level scope
    @ none:1
 [16] eval
    @ .\boot.jl:360 [inlined]
 [17] eval(x::Expr)
    @ Base.MainInclude .\client.jl:446
 [18] top-level scope
    @ none:1
in expression starting at C:\Users\jacks\.julia\packages\DiffEqOperators\DMNmH\src\MOLFiniteDifference\MOL_discretization.jl:193
in expression starting at C:\Users\jacks\.julia\packages\DiffEqOperators\DMNmH\src\MOLFiniteDifference\MOL_discretization.jl:18
in expression starting at C:\Users\jacks\.julia\packages\DiffEqOperators\DMNmH\src\DiffEqOperators.jl:1
ERROR: Failed to precompile DiffEqOperators [9fdde737-9c7f-55bf-ade8-46b3f136cc48] to C:\Users\jacks\.julia\compiled\v1.6\DiffEqOperators\jl_7EAD.tmp.
Stacktrace:
 [1] error(s::String)
   @ Base .\error.jl:33
 [2] compilecache(pkg::Base.PkgId, path::String, internal_stderr::Base.TTY, internal_stdout::Base.TTY)
   @ Base .\loading.jl:1360
 [3] compilecache(pkg::Base.PkgId, path::String)
   @ Base .\loading.jl:1306
 [4] _require(pkg::Base.PkgId)
   @ Base .\loading.jl:1021
 [5] require(uuidkey::Base.PkgId)
   @ Base .\loading.jl:914
 [6] require(into::Module, mod::Symbol)
   @ Base .\loading.jl:901

My first time posting an issue anywhere so let me know if I've done anything wrong or could do anything better. Thanks!

[ChrisRackauckas]

Upgrade your Symbolics.jl

[draneyjosu]

That worked! Thank you much.