Problem with VSCode connecting to language server

General Usage
,
1

This morning, I’m having a problem with VS Code. It seems unable to connect to the language server. It was fine yesterday. This is a work computer (but working from home). I do not see the same problem on my home computer which sits next to the work computer at home. Both are Win11. I can still execute scripts in VSCode despite this error.

Screenshot 2025-05-15 095857
Screenshot 2025-05-15 095857470×265 9.31 KB

I’ve not knowingly changed anything overnight on either machine.

The problem seems to be “Access is denied” - for example:

c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\JSON\uf6oy_bkEHX.dll: Access is denied.

But I can navigate to this folder and open the files in it (eg in Notepad) from Windows Explorer, and save them back out under a different name to the same folder. However, this specific file doesn’t seem to be there. Correction, file is there - I was looking under ~\JSONRPC.

Any hints on a fix very welcome…

The output (long!) looks like this (repeated until it gives up…)

[ Info: Starting LS with Julia 1.11.4
  Activating project at `c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\environments\languageserver\v1.11`
[ Info: Starting the Julia Language Server
Precompiling LanguageServer...
           ✗ CSTParser
           ✗ DataStructures
           ✗ Salsa
           ✗ TestItemDetection
           ✗ JSONRPC
           ✗ JuliaWorkspaces
           ✗ PrecompileTools
           ✗ StaticLint
           ✗ CommonMark
           ✗ JuliaFormatter
Info Given LanguageServer was explicitly requested, output will be shown live e[0K
e[0KERROR: LoadError: Error opening package file c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\JSON\uf6oy_bkEHX.dll: Access is denied. 
e[0K
e[0KStacktrace:
e[0K  [1] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any}, ignore_native::Nothing; register::Bool)
e[0K    @ Base .\loading.jl:1245
e[0K  [2] _include_from_serialized (repeats 2 times)
e[0K    @ .\loading.jl:1210 [inlined]
e[0K  [3] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128, stalecheck::Bool; reasons::Dict{String, Int64}, DEPOT_PATH::Vector{String})
e[0K    @ Base .\loading.jl:2057
e[0K  [4] _require(pkg::Base.PkgId, env::String)
e[0K    @ Base .\loading.jl:2527
e[0K  [5] __require_prelocked(uuidkey::Base.PkgId, env::String)
e[0K    @ Base .\loading.jl:2388
e[0K  [6] #invoke_in_world#3
e[0K    @ .\essentials.jl:1089 [inlined]
e[0K  [7] invoke_in_world
e[0K    @ .\essentials.jl:1086 [inlined]
e[0K  [8] _require_prelocked(uuidkey::Base.PkgId, env::String)
e[0K    @ Base .\loading.jl:2375
e[0K  [9] macro expansion
e[0K    @ .\loading.jl:2314 [inlined]
e[0K [10] macro expansion
e[0K    @ .\lock.jl:273 [inlined]
e[0K [11] __require(into::Module, mod::Symbol)
e[0K    @ Base .\loading.jl:2271
e[0K [12] #invoke_in_world#3
e[0K    @ .\essentials.jl:1089 [inlined]
e[0K [13] invoke_in_world
e[0K    @ .\essentials.jl:1086 [inlined]
e[0K [14] require(into::Module, mod::Symbol)
e[0K    @ Base .\loading.jl:2260
e[0K [15] include
e[0K    @ .\Base.jl:557 [inlined]
e[0K [16] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
e[0K    @ Base .\loading.jl:2881
e[0K [17] top-level scope
e[0K    @ stdin:6
e[0Kin expression starting at c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\LanguageServer\src\LanguageServer.jl:1
e[0Kin expression starting at stdin:6
           ✗ LanguageServer
  0 dependencies successfully precompiled in 13 seconds. 44 already precompiled.

┌ Error: Some Julia code in the VS Code extension crashed
└ @ Main c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\error_handler.jl:15
ERROR: The following 11 direct dependencies failed to precompile:

JuliaWorkspaces 

Failed to precompile JuliaWorkspaces [e554591c-7f10-434f-9f27-2097f62a04fd] to "c:\\Users\\TGebbels\\AppData\\Roaming\\Code\\User\\globalStorage\\julialang.language-julia\\lsdepot\\v1\\compiled\\v1.11\\JuliaWorkspaces\\jl_650E.tmp".
ERROR: LoadError: Error opening package file c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\JuliaSyntax\KyTzp_bkEHX.dll: Access is denied. 

Stacktrace:
  [1] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any}, ignore_native::Nothing; register::Bool)
    @ Base .\loading.jl:1245
  [2] _include_from_serialized (repeats 2 times)
    @ .\loading.jl:1210 [inlined]
  [3] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128, stalecheck::Bool; reasons::Dict{String, Int64}, DEPOT_PATH::Vector{String})
    @ Base .\loading.jl:2057
  [4] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:2527
  [5] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2388
  [6] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
  [7] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
  [8] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2375
  [9] macro expansion
    @ .\loading.jl:2314 [inlined]
 [10] macro expansion
    @ .\lock.jl:273 [inlined]
 [11] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2271
 [12] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [13] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [14] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2260
 [15] include
    @ .\Base.jl:557 [inlined]
 [16] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base .\loading.jl:2881
 [17] top-level scope
    @ stdin:6
in expression starting at c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\JuliaWorkspaces\src\JuliaWorkspaces.jl:1
in expression starting at stdin:6
LanguageServer 

Failed to precompile LanguageServer [2b0e0bc5-e4fd-59b4-8912-456d1b03d8d7] to "c:\\Users\\TGebbels\\AppData\\Roaming\\Code\\User\\globalStorage\\julialang.language-julia\\lsdepot\\v1\\compiled\\v1.11\\LanguageServer\\jl_81D6.tmp".
ERROR: LoadError: Error opening package file c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\JSON\uf6oy_bkEHX.dll: Access is denied. 

Stacktrace:
  [1] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any}, ignore_native::Nothing; register::Bool)
    @ Base .\loading.jl:1245
  [2] _include_from_serialized (repeats 2 times)
    @ .\loading.jl:1210 [inlined]
  [3] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128, stalecheck::Bool; reasons::Dict{String, Int64}, DEPOT_PATH::Vector{String})
    @ Base .\loading.jl:2057
  [4] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:2527
  [5] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2388
  [6] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
  [7] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
  [8] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2375
  [9] macro expansion
    @ .\loading.jl:2314 [inlined]
 [10] macro expansion
    @ .\lock.jl:273 [inlined]
 [11] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2271
 [12] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [13] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [14] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2260
 [15] include
    @ .\Base.jl:557 [inlined]
 [16] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base .\loading.jl:2881
 [17] top-level scope
    @ stdin:6
in expression starting at c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\LanguageServer\src\LanguageServer.jl:1
in expression starting at stdin:6

CSTParser 

Failed to precompile CSTParser [00ebfdb7-1f24-5e51-bd34-a7502290713f] to "c:\\Users\\TGebbels\\AppData\\Roaming\\Code\\User\\globalStorage\\julialang.language-julia\\lsdepot\\v1\\compiled\\v1.11\\CSTParser\\jl_5A0C.tmp".
ERROR: LoadError: Error opening package file c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\Tokenize\7Oi97_bkEHX.dll: Access is denied. 

Stacktrace:
  [1] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any}, ignore_native::Nothing; register::Bool)
    @ Base .\loading.jl:1245
  [2] _include_from_serialized (repeats 2 times)
    @ .\loading.jl:1210 [inlined]
  [3] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128, stalecheck::Bool; reasons::Dict{String, Int64}, DEPOT_PATH::Vector{String})
    @ Base .\loading.jl:2057
  [4] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:2527
  [5] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2388
  [6] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
  [7] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
  [8] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2375
  [9] macro expansion
    @ .\loading.jl:2314 [inlined]
 [10] macro expansion
    @ .\lock.jl:273 [inlined]
 [11] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2271
 [12] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [13] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [14] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2260
 [15] include
    @ .\Base.jl:557 [inlined]
 [16] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base .\loading.jl:2881
 [17] top-level scope
    @ stdin:6
in expression starting at c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\CSTParser\src\CSTParser.jl:1
in expression starting at stdin:6

JuliaFormatter 

Failed to precompile JuliaFormatter [98e50ef6-434e-11e9-1051-2b60c6c9e899] to "c:\\Users\\TGebbels\\AppData\\Roaming\\Code\\User\\globalStorage\\julialang.language-julia\\lsdepot\\v1\\compiled\\v1.11\\JuliaFormatter\\jl_7550.tmp".
ERROR: LoadError: Error opening package file c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\Tokenize\7Oi97_bkEHX.dll: Access is denied. 

Stacktrace:
  [1] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any}, ignore_native::Nothing; register::Bool)
    @ Base .\loading.jl:1245
  [2] _include_from_serialized (repeats 2 times)
    @ .\loading.jl:1210 [inlined]
  [3] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128, stalecheck::Bool; reasons::Dict{String, Int64}, DEPOT_PATH::Vector{String})
    @ Base .\loading.jl:2057
  [4] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:2527
  [5] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2388
  [6] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
  [7] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
  [8] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2375
  [9] macro expansion
    @ .\loading.jl:2314 [inlined]
 [10] macro expansion
    @ .\lock.jl:273 [inlined]
 [11] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2271
 [12] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [13] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [14] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2260
 [15] include
    @ .\Base.jl:557 [inlined]
 [16] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::String)
    @ Base .\loading.jl:2881
 [17] top-level scope
    @ stdin:6
in expression starting at c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\CSTParser\src\CSTParser.jl:1
in expression starting at stdin:6
ERROR: LoadError: Failed to precompile CSTParser [00ebfdb7-1f24-5e51-bd34-a7502290713f] to "c:\\Users\\TGebbels\\AppData\\Roaming\\Code\\User\\globalStorage\\julialang.language-julia\\lsdepot\\v1\\compiled\\v1.11\\CSTParser\\jl_767D.tmp".
Stacktrace:
  [1] error(s::String)
    @ Base .\error.jl:35
  [2] compilecache(pkg::Base.PkgId, path::String, internal_stderr::IO, internal_stdout::IO, keep_loaded_modules::Bool; flags::Cmd, cacheflags::Base.CacheFlags, reasons::Dict{String, Int64}, loadable_exts::Nothing)
    @ Base .\loading.jl:3174
  [3] (::Base.var"#1110#1111"{Base.PkgId})()
    @ Base .\loading.jl:2579
  [4] mkpidlock(f::Base.var"#1110#1111"{Base.PkgId}, at::String, pid::Int32; kwopts::@Kwargs{stale_age::Int64, wait::Bool})
    @ FileWatching.Pidfile C:\Users\TGebbels\.julia\juliaup\julia-1.11.4+0.x64.w64.mingw32\share\julia\stdlib\v1.11\FileWatching\src\pidfile.jl:95
  [5] #mkpidlock#6
    @ C:\Users\TGebbels\.julia\juliaup\julia-1.11.4+0.x64.w64.mingw32\share\julia\stdlib\v1.11\FileWatching\src\pidfile.jl:90 [inlined]
  [6] trymkpidlock(::Function, ::Vararg{Any}; kwargs::@Kwargs{stale_age::Int64})
    @ FileWatching.Pidfile C:\Users\TGebbels\.julia\juliaup\julia-1.11.4+0.x64.w64.mingw32\share\julia\stdlib\v1.11\FileWatching\src\pidfile.jl:116
  [7] #invokelatest#2
    @ .\essentials.jl:1057 [inlined]
  [8] invokelatest
    @ .\essentials.jl:1052 [inlined]
  [9] maybe_cachefile_lock(f::Base.var"#1110#1111"{Base.PkgId}, pkg::Base.PkgId, srcpath::String; stale_age::Int64)
    @ Base .\loading.jl:3698
 [10] maybe_cachefile_lock
    @ .\loading.jl:3695 [inlined]
 [11] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:2565
 [12] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2388
 [13] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [14] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [15] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2375
 [16] macro expansion
    @ .\loading.jl:2314 [inlined]
 [17] macro expansion
    @ .\lock.jl:273 [inlined]
 [18] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2271
 [19] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [20] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [21] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2260
 [22] include
    @ .\Base.jl:557 [inlined]
 [23] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base .\loading.jl:2881
 [24] top-level scope
    @ stdin:6
in expression starting at c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\JuliaFormatter\src\JuliaFormatter.jl:1
in expression starting at stdin:6

StaticLint 

Failed to precompile StaticLint [b3cc710f-9c33-5bdb-a03d-a94903873e97] to "c:\\Users\\TGebbels\\AppData\\Roaming\\Code\\User\\globalStorage\\julialang.language-julia\\lsdepot\\v1\\compiled\\v1.11\\StaticLint\\jl_64FB.tmp".
ERROR: LoadError: Error opening package file c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\SymbolServer\355ac_bkEHX.dll: Access is denied. 

Stacktrace:
  [1] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any}, ignore_native::Nothing; register::Bool)
    @ Base .\loading.jl:1245
  [2] _include_from_serialized (repeats 2 times)
    @ .\loading.jl:1210 [inlined]
  [3] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128, stalecheck::Bool; reasons::Dict{String, Int64}, DEPOT_PATH::Vector{String})
    @ Base .\loading.jl:2057
  [4] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:2527
  [5] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2388
  [6] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
  [7] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
  [8] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2375
  [9] macro expansion
    @ .\loading.jl:2314 [inlined]
 [10] macro expansion
    @ .\lock.jl:273 [inlined]
 [11] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2271
 [12] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [13] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [14] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2260
 [15] include
    @ .\Base.jl:557 [inlined]
 [16] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base .\loading.jl:2881
 [17] top-level scope
    @ stdin:6
in expression starting at c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\StaticLint\src\StaticLint.jl:1
in expression starting at stdin:6

TestItemDetection 

Failed to precompile TestItemDetection [76b0de8b-5c4b-48ef-a724-914b33ca988d] to "c:\\Users\\TGebbels\\AppData\\Roaming\\Code\\User\\globalStorage\\julialang.language-julia\\lsdepot\\v1\\compiled\\v1.11\\TestItemDetection\\jl_5A5D.tmp".
ERROR: LoadError: Error opening package file c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\JuliaSyntax\KyTzp_bkEHX.dll: Access is denied. 

Stacktrace:
  [1] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any}, ignore_native::Nothing; register::Bool)
    @ Base .\loading.jl:1245
  [2] _include_from_serialized (repeats 2 times)
    @ .\loading.jl:1210 [inlined]
  [3] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128, stalecheck::Bool; reasons::Dict{String, Int64}, DEPOT_PATH::Vector{String})
    @ Base .\loading.jl:2057
  [4] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:2527
  [5] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2388
  [6] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
  [7] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
  [8] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2375
  [9] macro expansion
    @ .\loading.jl:2314 [inlined]
 [10] macro expansion
    @ .\lock.jl:273 [inlined]
 [11] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2271
 [12] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [13] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [14] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2260
 [15] include
    @ .\Base.jl:557 [inlined]
 [16] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base .\loading.jl:2881
 [17] top-level scope
    @ stdin:6
in expression starting at c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\TestItemDetection\src\TestItemDetection.jl:1
in expression starting at stdin:6

DataStructures 

Failed to precompile DataStructures [864edb3b-99cc-5e75-8d2d-829cb0a9cfe8] to "c:\\Users\\TGebbels\\AppData\\Roaming\\Code\\User\\globalStorage\\julialang.language-julia\\lsdepot\\v1\\compiled\\v1.11\\DataStructures\\jl_5AB4.tmp".
ERROR: LoadError: Error opening package file c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\Compat\GSFWK_bkEHX.dll: Access is denied. 

Stacktrace:
  [1] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any}, ignore_native::Nothing; register::Bool)
    @ Base .\loading.jl:1245
  [2] _include_from_serialized (repeats 2 times)
    @ .\loading.jl:1210 [inlined]
  [3] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128, stalecheck::Bool; reasons::Dict{String, Int64}, DEPOT_PATH::Vector{String})
    @ Base .\loading.jl:2057
  [4] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:2527
  [5] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2388
  [6] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
  [7] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
  [8] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2375
  [9] macro expansion
    @ .\loading.jl:2314 [inlined]
 [10] macro expansion
    @ .\lock.jl:273 [inlined]
 [11] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2271
 [12] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [13] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [14] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2260
 [15] include
    @ .\Base.jl:557 [inlined]
 [16] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base .\loading.jl:2881
 [17] top-level scope
    @ stdin:6
in expression starting at c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\DataStructures\src\DataStructures.jl:1
in expression starting at stdin:6

PrecompileTools 

Failed to precompile PrecompileTools [aea7be01-6a6a-4083-8856-8a6e6704d82a] to "c:\\Users\\TGebbels\\AppData\\Roaming\\Code\\User\\globalStorage\\julialang.language-julia\\lsdepot\\v1\\compiled\\v1.11\\PrecompileTools\\jl_64AA.tmp".
ERROR: LoadError: Error opening package file c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\Preferences\pWSk8_bkEHX.dll: Access is denied. 

Stacktrace:
  [1] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any}, ignore_native::Nothing; register::Bool)
    @ Base .\loading.jl:1245
  [2] _include_from_serialized (repeats 2 times)
    @ .\loading.jl:1210 [inlined]
  [3] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128, stalecheck::Bool; reasons::Dict{String, Int64}, DEPOT_PATH::Vector{String})
    @ Base .\loading.jl:2057
  [4] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:2527
  [5] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2388
  [6] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
  [7] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
  [8] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2375
  [9] macro expansion
    @ .\loading.jl:2314 [inlined]
 [10] macro expansion
    @ .\lock.jl:273 [inlined]
 [11] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2271
 [12] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [13] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [14] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2260
 [15] top-level scope
    @ c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\PrecompileTools\src\PrecompileTools.jl:4
 [16] include
    @ .\Base.jl:557 [inlined]
 [17] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base .\loading.jl:2881
 [18] top-level scope
    @ stdin:6
in expression starting at c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\PrecompileTools\src\PrecompileTools.jl:1
in expression starting at stdin:6

Salsa 

Failed to precompile Salsa [1fbf2c77-44e2-4d5d-8131-0fa618a5c278] to "c:\\Users\\TGebbels\\AppData\\Roaming\\Code\\User\\globalStorage\\julialang.language-julia\\lsdepot\\v1\\compiled\\v1.11\\Salsa\\jl_5A92.tmp".
ERROR: LoadError: Error opening package file c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\MacroTools\38lnR_bkEHX.dll: Access is denied. 

Stacktrace:
  [1] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any}, ignore_native::Nothing; register::Bool)
    @ Base .\loading.jl:1245
  [2] _include_from_serialized (repeats 2 times)
    @ .\loading.jl:1210 [inlined]
  [3] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128, stalecheck::Bool; reasons::Dict{String, Int64}, DEPOT_PATH::Vector{String})
    @ Base .\loading.jl:2057
  [4] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:2527
  [5] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2388
  [6] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
  [7] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
  [8] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:2375
  [9] macro expansion
    @ .\loading.jl:2314 [inlined]
 [10] macro expansion
    @ .\lock.jl:273 [inlined]
 [11] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2271
 [12] #invoke_in_world#3
    @ .\essentials.jl:1089 [inlined]
 [13] invoke_in_world
    @ .\essentials.jl:1086 [inlined]
 [14] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:2260
 [15] include
    @ .\Base.jl:557 [inlined]
 [16] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base .\loading.jl:2881
 [17] top-level scope
    @ stdin:6
in expression starting at c:\Users\TGebbels\.vscode\extensions\julialang.language-julia-1.140.2\scripts\packages\Salsa\src\Salsa.jl:1
in expression starting at stdin:6

JSONRPC 

Failed to precompile JSONRPC [b9b8584e-8fd3-41f9-ad0c-7255d428e418] to "c:\\Users\\TGebbels\\AppData\\Roaming\\Code\\User\\globalStorage\\julialang.language-julia\\lsdepot\\v1\\compiled\\v1.11\\JSONRPC\\jl_5A70.tmp".
ERROR: LoadError: Error opening package file c:\Users\TGebbels\AppData\Roaming\Code\User\globalStorage\julialang.language-julia\lsdepot\v1\compiled\v1.11\JSON\uf6oy_bkEHX.dll: Access is denied. 

[etc, etc]

[Error - 10:00:03 AM] Server initialization failed.
  Message: Pending response rejected since connection got disposed
  Code: -32097 
[Info  - 10:00:03 AM] Connection to server got closed. Server will restart.
true
[Error - 10:00:03 AM] Julia Language Server client: couldn't create connection to server.
  Message: Pending response rejected since connection got disposed
  Code: -32097 
[Error - 10:00:03 AM] Server process exited with code 1.
2

Try the following

  1. uninstall the julia extension
  2. delete %HOMEPATH%\.vscode\extensions\julialang.language-julia-1.140.2
  3. delete %APPDATA%\Roaming\Code\User\globalStorage\julialang.language-julia
  4. install the julia extension again
3

Thank you for this suggestion which I tried, followed by a re-boot, but unfortunately it hasn’t worked.

VS Code still shows

Screenshot 2025-05-16 083653
Screenshot 2025-05-16 083653459×307 9.85 KB

I’ve rerun juliaup and it downloaded and installed julia 11.5 but VS Code still doesn’t connect.

Do I have to delete julia completely and reinstall?

4

I missed this executablePath error last time.

Do you actually have julia in the system path?

Does it work if you write down the julia path directly into the setting julia.executablePath ?

5

VS Code can execute a script (“Run Without Debugging”) so it knows where the julia executable is located.

The option the error message points to says:

Screenshot 2025-05-19 081116
Screenshot 2025-05-19 081116642×325 11.7 KB

but I think this is expected when juliaup is used to install julia. My other computer shows the same here and works perfectly.

I don’t actually know where to find the the language server executable.

6

To close this one, it seems the problem was caused by a recent change to corporate security policy. A system called ThreatLocker was blocking access to files, causing the “permission denied” error for the language server on files I myself can access no problem.

The IT security team have changed the settings to allow necessary access to these files, so I’m back in business, but it is limited to the current path, so when julia updates to v1.12 and the path changes accordingly, I’ll have to go back to IT to get access again.

So not specifically a julia issue but a conflict between the way julia works and the specific security policy at my employer.

1 Like