1.4.2版本的Julia，在REPL中已经正常安装好了Gadfly：
------------------------------------- 安装 Gadfly 的代码-----------------------------------------------
(@v1.4) pkg> add Gadfly
** Updating registry at C:\Users\xxxx0\.julia\registries\General **
** Updating git-repo https://mirrors.ustc.edu.cn/julia/registries/General.git **
** Resolving package versions…**
** Updating C:\Users\xxxx\.julia\environments\v1.4\Project.toml **
** [no changes]**
** Updating C:\Users\xxxx\.julia\environments\v1.4\Manifest.toml **
** [no changes]**
---------------------------------------------------------------------------------------------------------------
然而在using Gadfly的时候却总是报错 
：
------------------------------------- using Gadfly 的代码-----------------------------------------------
julia> using Gadfly
[ Info: Precompiling Gadfly [c91e804a-d5a3-530f-b6f0-dfbca275c004]
ERROR: LoadError: LoadError: UndefVarError: start not defined
Stacktrace:
** [1] getproperty(::Module, ::Symbol) at .\Base.jl:26**
** [2] top-level scope at C:\Users\xxxx.julia\packages\DataArrays\mcLPH\src\abstractdataarray.jl:27**
** [3] include(::Module, ::String) at .\Base.jl:377**
** [4] include(::String) at C:\Users\xxxx.julia\packages\DataArrays\mcLPH\src\DataArrays.jl:3**
** [5] top-level scope at C:\Users\xxxx.julia\packages\DataArrays\mcLPH\src\DataArrays.jl:45**
** [6] include(::Module, ::String) at .\Base.jl:377**
** [7] top-level scope at none:2**
** [8] eval at .\boot.jl:331 [inlined]**
** [9] eval(::Expr) at .\client.jl:449**
** [10] top-level scope at .\none:3**
in expression starting at C:\Users\xxxx.julia\packages\DataArrays\mcLPH\src\abstractdataarray.jl:27
in expression starting at C:\Users\xxxx.julia\packages\DataArrays\mcLPH\src\DataArrays.jl:45
ERROR: LoadError: Failed to precompile DataArrays [0fe7c1db-08c2-54a3-a222-6d1d3b7a471a] to C:\Users\zv980.julia\compiled\v1.4\DataArrays\ZAWTY_2TI9R.ji.
Stacktrace:
** [1] error(::String) at .\error.jl:33**
** [2] compilecache(::Base.PkgId, ::String) at .\loading.jl:1272**
** [3] _require(::Base.PkgId) at .\loading.jl:1029**
** [4] require(::Base.PkgId) at .\loading.jl:927**
** [5] require(::Module, ::Symbol) at .\loading.jl:922**
** [6] include(::Module, ::String) at .\Base.jl:377**
** [7] top-level scope at none:2**
** [8] eval at .\boot.jl:331 [inlined]**
** [9] eval(::Expr) at .\client.jl:449**
** [10] top-level scope at .\none:3**
in expression starting at C:\Users\xxxx.julia\packages\Gadfly\p8TXc\src\Gadfly.jl:8
ERROR: Failed to precompile Gadfly [c91e804a-d5a3-530f-b6f0-dfbca275c004] to C:\Users\xxxxx.julia\compiled\v1.4\Gadfly\DvECm_2TI9R.ji.
Stacktrace:
** [1] error(::String) at .\error.jl:33**
** [2] compilecache(::Base.PkgId, ::String) at .\loading.jl:1272**
** [3] _require(::Base.PkgId) at .\loading.jl:1029**
** [4] require(::Base.PkgId) at .\loading.jl:927**
** [5] require(::Module, ::Symbol) at .\loading.jl:922**
---------------------------------------------------------------------------------------------------------------
是从镜像网站上下载的Gadfly，其他包的安装和使用都没有问题
想请教一下各位大佬应该如何解决呢？
