为什么可以'；我不能在Julia上正确安装Plots软件包吗？

我是Julia编程新手，正在尝试安装Plots软件包；这应该相当简单，但事实并非如此。每次尝试执行此操作时，我都会收到以下错误消息：

ERROR: Pkg.TOML.ParserError(2, 2, "expected a key but found an empty string")

我在

Pkg.add（“Plots”）

行之前运行的唯一代码是

import Pkg

，因此我无法想象这个问题是如何发生的

附加信息：我正在开发Julia 1.5.4，并通过Atom v1.55.0在Juno IDE中运行它。下面是整个堆栈跟踪（可能非常缺乏信息）：

Stacktrace:
 [1] parse(::Base.GenericIOBuffer{Array{UInt8,1}}) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\ext\TOML\src\TOML.jl:37
 [2] parsefile at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\ext\TOML\src\TOML.jl:50 [inlined]
 [3] #parse_toml#10 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Types.jl:154 [inlined]
 [4] parse_toml at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Types.jl:153 [inlined]
 [5] #load_artifacts_toml#18 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Artifacts.jl:471 [inlined]
 [6] ensure_all_artifacts_installed(::String; platform::Pkg.BinaryPlatforms.Platform, pkg_uuid::Nothing, include_lazy::Bool, verbose::Bool, quiet_download::Bool) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Artifacts.jl:948
 [7] download_artifacts(::Pkg.Types.Context, ::Array{String,1}; platform::Pkg.BinaryPlatforms.Windows, verbose::Bool) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Operations.jl:663
 [8] download_artifacts(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; platform::Pkg.BinaryPlatforms.Windows, verbose::Bool) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Operations.jl:642
 [9] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}, ::Array{Base.UUID,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.Windows) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Operations.jl:1141
 [10] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.Windows, kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:188
 [11] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:139
 [12] #add#21 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:67 [inlined]
 [13] add at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:67 [inlined]
 [14] #add#20 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:66 [inlined]
 [15] add at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:66 [inlined]
 [16] add(::String; kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:65
 [17] add(::String) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:65
 [18] top-level scope at none:1

这是最初存在的project.TOML文件

[deps]
Atom = "c52e3926-4ff0-5f6e-af25-54175e0327b1"
Colors = "5ae59095-9a9b-59fe-a467-6f913c188581"
Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
Juno = "e5e0dc1b-0480-54bc-9374-aad01c23163d"
PDMats = "90014a1f-27ba-587c-ab20-58faa44d9150"
TOML = "fa267f1f-6049-4f14-aa54-33bafae1ed76"

当我根据请求重命名它project.toml.backup并再次尝试安装时，它仍然失败，错误消息相同，但堆栈跟踪不同（更长）

Stacktrace:
 [1] parse(::Base.GenericIOBuffer{Array{UInt8,1}}) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\ext\TOML\src\TOML.jl:37
 [2] parsefile at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\ext\TOML\src\TOML.jl:50 [inlined]
 [3] #parse_toml#10 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Types.jl:154 [inlined]
 [4] parse_toml at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Types.jl:153 [inlined]
 [5] #load_artifacts_toml#18 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Artifacts.jl:471 [inlined]
 [6] ensure_all_artifacts_installed(::String; platform::Pkg.BinaryPlatforms.Platform, pkg_uuid::Nothing, include_lazy::Bool, verbose::Bool, quiet_download::Bool) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Artifacts.jl:948
 [7] download_artifacts(::Pkg.Types.Context, ::Array{String,1}; platform::Pkg.BinaryPlatforms.Windows, verbose::Bool) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Operations.jl:663
 [8] download_artifacts(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; platform::Pkg.BinaryPlatforms.Windows, verbose::Bool) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Operations.jl:642
 [9] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}, ::Array{Base.UUID,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.Windows) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Operations.jl:1141
 [10] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.Windows, kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:188
 [11] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:139
 [12] #add#21 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:67 [inlined]
 [13] add(::Array{Pkg.Types.PackageSpec,1}) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:67
 [14] do_cmd!(::Pkg.REPLMode.Command, ::REPL.LineEditREPL) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\REPLMode\REPLMode.jl:404
 [15] do_cmd(::REPL.LineEditREPL, ::String; do_rethrow::Bool) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\REPLMode\REPLMode.jl:382
 [16] do_cmd at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\REPLMode\REPLMode.jl:377 [inlined]
 [17] (::Pkg.REPLMode.var"#24#27"{REPL.LineEditREPL,REPL.LineEdit.Prompt})(::REPL.LineEdit.MIState, ::Base.GenericIOBuffer{Array{UInt8,1}}, ::Bool) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\REPLMode\REPLMode.jl:546
 [18] (::Atom.var"#4#15"{Pkg.REPLMode.var"#24#27"{REPL.LineEditREPL,REPL.LineEdit.Prompt}})(::REPL.LineEdit.MIState, ::Base.GenericIOBuffer{Array{UInt8,1}}, ::Bool) at C:\Users\pthom\.julia\packages\Atom\BPtI0\src\Atom.jl:31 [19] #invokelatest#1 at .\essentials.jl:710 [inlined]
 [20] invokelatest at .\essentials.jl:709 [inlined]
 [21] run_interface(::REPL.Terminals.TextTerminal, ::REPL.LineEdit.ModalInterface, ::REPL.LineEdit.MIState) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\REPL\src\LineEdit.jl:2355
 [22] run_frontend(::REPL.LineEditREPL, ::REPL.REPLBackendRef) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\REPL\src\REPL.jl:1144
 [23] (::REPL.var"#38#42"{REPL.LineEditREPL,REPL.REPLBackendRef})() at .\task.jl:356

---

如果我遗漏了任何信息或任何人有任何想法，请告诉我。非常感谢。

当您通过REPL安装时，是否会出现相同的错误？因此，键入

]

（您的提示应该更改为

（@v1.5）pkg>

），然后只键入

添加绘图

。是的，不幸的是，即使我键入

]

，然后只键入

添加绘图

，我仍然会收到错误。您可以发布您的Project.toml文件吗？您可以根据第二行中的parseerror找到位置

pkg>状态

，我预计第二行会有奇怪/损坏的内容。您可以尝试将

Project.toml

重命名为

Project.toml.backup

，然后重试。如果您添加包，Julia将生成一个新的包。我编辑了我的原始消息-它现在有Project.toml。我重命名了它并再次尝试，但它仍然不起作用，但现在给出了不同的堆栈跟踪。我的猜测是没有生成TOML文件（当我再次键入

status

时，它给出了相同的目录，但在括号中说

（空项目）

。我可以安装我想要的任何其他包（例如，已经存在的颜色），即使在安装之后，绘图现在也会生成第二个堆栈跟踪（现在已经生成了一个TOML文件）。这只是Plots软件包的问题，还是在尝试安装其他软件包时也会出现？