我是Julia的新手，并根据Juno网站上的指示在Ubuntu 18.04的Atom中下载了Juno IDE。我正在尝试仅使用println("Hello")运行文件，但是似乎从未产生过输出。当我在REPL窗口中键入该行时，它可以正常工作。我想念什么？
这是启动时的REPL窗口：
Press Enter to start Julia.
Hold on tight while we are installing some packages for you.
This should only take a few seconds...
Activating environment at `~/.julia/environments/v1.5/Project.toml`
Resolving package versions...
ERROR: LoadError: Unsatisfiable requirements detected for package CSV [336ed68f]:
CSV [336ed68f] log:
├─CSV [336ed68f] has no known versions!
└─restricted to versions * by an explicit requirement — no versions left
Stacktrace:
[1] check_constraints(::Pkg.Resolve.Graph) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Resolve/graphtype.jl:935
[2] Pkg.Resolve.Graph(::Dict{Base.UUID,Set{VersionNumber}}, ::Dict{Base.UUID,Dict{VersionNumber,Dict{String,Base.UUID}}}, ::Dict{Base.UUID,Dict{VersionNumber,Dict{String,Pkg.Types.VersionSpec}}}, ::Dict{Base.UUID,String}, ::Dict{Base.UUID,Pkg.Types.VersionSpec}, ::Dict{Base.UUID,Pkg.Resolve.Fixed}, ::Bool) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Resolve/graphtype.jl:362
[3] deps_graph(::Pkg.Types.Context, ::Dict{Base.UUID,String}, ::Dict{Base.UUID,Pkg.Types.VersionSpec}, ::Dict{Base.UUID,Pkg.Resolve.Fixed}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:495
[4] resolve_versions!(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:367
[5] targeted_resolve at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:1107 [inlined]
[6] tiered_resolve(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:1093
[7] _resolve at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:1113 [inlined]
[8] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}, ::Array{Base.UUID,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.Linux) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:1128
[9] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.Linux, kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:189
[10] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:140
[11] #add#21 at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:67 [inlined]
[12] add at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:67 [inlined]
[13] #add#20 at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:66 [inlined]
[14] add at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:66 [inlined]
[15] add(::String; kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:65
[16] add(::String) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:65
[17] top-level scope at /home/nick/.atom/packages/julia-client/script/boot_repl.jl:21
[18] include(::Function, ::Module, ::String) at ./Base.jl:380
[19] include(::Module, ::String) at ./Base.jl:368
[20] exec_options(::Base.JLOptions) at ./client.jl:296
[21] _start() at ./client.jl:506
in expression starting at /home/nick/.atom/packages/julia-client/script/boot_repl.jl:1