为了更好的让他人提供帮助，请在发帖前附上足够的诊断信息，比如：
- 在 REPL 中执行
using InteractiveUtils; versioninfo()来获取 Julia 的版本信息 - 在 REPL 中执行
using Pkg; Pkg.status()来获取当前包管理器的状态 - 完整的安装失败的错误信息
- 第三方库的其它相关信息，如库的链接，库的版本等等
发帖前请删除上述信息
版本：
Julia Version 1.0.4
Commit 38e9fb7f80 (2019-05-16 03:38 UTC)
Platform Info:
OS: Windows (x86_64-w64-mingw32)
CPU: Intel(R) Core™ i7-3610QM CPU @ 2.30GHz
WORD_SIZE: 64
LIBM: libopenlibm
LLVM: libLLVM-6.0.0 (ORCJIT, ivybridge)
库：
Status C:\Users\wbk\.julia\environments\v1.0\Project.toml
[c52e3926] Atom v0.8.7
[a93c6f00] DataFrames v0.18.3
[0c46a032] DifferentialEquations v6.4.0 #master (D:\git\down\DifferentialEquat
ions.jl)
[587475ba] Flux v0.8.3
[4076af6c] JuMP v0.19.1
[e5e0dc1b] Juno v0.7.0
→→ [7be4a7d9] Openspecfun v0.0.0 [C:\Users\wbk\.julia\dev\Openspecfun]
[e0fc9d43] PkgMirrors v1.1.0
[be4d8f0f] Quadmath v0.4.0
[276daf66] SpecialFunctions v0.8.0 #master (D:\git\down\SpecialFunctions.jl)
→→ [a761408d] openspecfun v0.0.0 #master (D:\git\down\openspecfun)
┌┌ Warning: Some packages (indicated with a red arrow) are not downloaded, use instantiate to instantiate the current environment
└└ @ Pkg.Display C:\cygwin\home\Administrator\buildbot\worker\package_win64\buil
d\usr\share\julia\stdlib\v1.0\Pkg\src\Display.jl:194
运行结果：
julia> using openspecfun
ERROR: ArgumentError: Package openspecfun [a761408d-e00d-59b0-81d0-dcfa74b3d8ef]
is required but does not seem to be installed:
- Run
Pkg.instantiate()to install all recorded dependencies.
Stacktrace:
[1] _require(::Base.PkgId) at .\loading.jl:929
[2] require(::Base.PkgId) at .\loading.jl:858
[3] require(::Module, ::Symbol) at .\loading.jl:853