Hi All 
I run into a very wired error. It only happens while using Julia as system-user on Windows.
Let me explain what I’m doing:
1.) Created an project with the following structure:
/my_project
/my_project/start.jl
/my_project/Project.toml
/my_project/src/MyProject.jl
The following lines are in start.jl:
using Pkg
Pkg.activate(@__DIR__)
Pkg.instantiate()
2.) Start Julia REPL as “nt authority\system”:
Here I use “PSTools”.
cmd> PsExec64.exe -s -i julia
Now I can see if I’m “nt authority\system”
julia>;
shell> whoami
nt authority\system
3.) Include the start.jl file:
After that the following error occurs
ERROR: LoadError: SystemError: opening file "my_project\\Project.toml": Permission denied
Stacktrace:
[1] systemerror(p::String, errno::Int32; extrainfo::Nothing)
@ Base .\error.jl:168
[2] #systemerror#62
@ .\error.jl:167 [inlined]
[3] systemerror
@ .\error.jl:167 [inlined]
[4] open(fname::String; lock::Bool, read::Nothing, write::Nothing, create::Nothing, truncate::Bool, append::Nothing)
@ Base .\iostream.jl:293
[5] open(fname::String, mode::String; lock::Bool)
@ Base .\iostream.jl:355
[6] open(fname::String, mode::String)
@ Base .\iostream.jl:355
[7] open(::Base.var"#322#323"{String, Tuple{}}, ::String, ::Vararg{String, N} where N; kwargs::Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
@ Base .\io.jl:328
[8] open
@ .\io.jl:328 [inlined]
[9] write
@ .\io.jl:420 [inlined]
[10] write_project
@ C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\project.jl:178 [inlined]
[11] write_project
@ C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\project.jl:169 [inlined]
[12] write_project(env::Pkg.Types.EnvCache)
@ Pkg.Types C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\project.jl:167
[13] #write_env#106
@ C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\Types.jl:1399 [inlined]
[14] write_env
@ C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\Types.jl:1399 [inlined]
[15] up(ctx::Pkg.Types.Context, pkgs::Vector{Pkg.Types.PackageSpec}, level::Pkg.Types.UpgradeLevel)
@ Pkg.Operations C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\Operations.jl:1320
[16] up(ctx::Pkg.Types.Context, pkgs::Vector{Pkg.Types.PackageSpec}; level::Pkg.Types.UpgradeLevel, mode::Pkg.Types.PackageMode, update_registry::Bool, kwargs::Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
@ Pkg.API C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\API.jl:254
[17] #up#39
@ C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\API.jl:77 [inlined]
[18] instantiate(ctx::Pkg.Types.Context; manifest::Nothing, update_registry::Bool, verbose::Bool, platform::Base.BinaryPlatforms.Platform, allow_autoprecomp::Bool, kwargs::Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
@ Pkg.API C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\API.jl:1291
[19] instantiate
@ C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\API.jl:1276 [inlined]
[20] #instantiate#246
@ C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\API.jl:1272 [inlined]
[21] instantiate()
@ Pkg.API C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\API.jl:1272
[22] top-level scope
@ my_project\start.jl:4
n expression starting at my_project\start.jl:4
Can anybody reproduce that error? How can I fix it?